diff --git a/package-lock.json b/package-lock.json
index 79c447a..48cafb4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1670,6 +1670,122 @@
         "tslint": "^5.20.1",
         "webpack": "^4.0.0",
         "yorkie": "^2.0.0"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "color-convert": "^2.0.1"
+          }
+        },
+        "chalk": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
+          "integrity": "sha512-qwx12AxXe2Q5xQ43Ac//I6v5aXTipYrSESdOgzrN+9XjgEpyjpKuvSGaN4qE93f7TQTlerQQ8S+EQ0EyDoVL1A==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "ansi-styles": "^4.1.0",
+            "supports-color": "^7.1.0"
+          }
+        },
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "color-name": "~1.1.4"
+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+          "dev": true,
+          "optional": true
+        },
+        "fork-ts-checker-webpack-plugin-v5": {
+          "version": "npm:fork-ts-checker-webpack-plugin@5.2.1",
+          "resolved": "https://registry.npmjs.org/fork-ts-checker-webpack-plugin/-/fork-ts-checker-webpack-plugin-5.2.1.tgz",
+          "integrity": "sha512-SVi+ZAQOGbtAsUWrZvGzz38ga2YqjWvca1pXQFUArIVXqli0lLoDQ8uS0wg0kSpcwpZmaW5jVCZXQebkyUQSsw==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "@babel/code-frame": "^7.8.3",
+            "@types/json-schema": "^7.0.5",
+            "chalk": "^4.1.0",
+            "cosmiconfig": "^6.0.0",
+            "deepmerge": "^4.2.2",
+            "fs-extra": "^9.0.0",
+            "memfs": "^3.1.2",
+            "minimatch": "^3.0.4",
+            "schema-utils": "2.7.0",
+            "semver": "^7.3.2",
+            "tapable": "^1.0.0"
+          }
+        },
+        "has-flag": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+          "dev": true,
+          "optional": true
+        },
+        "lru-cache": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
+          "integrity": "sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "yallist": "^4.0.0"
+          }
+        },
+        "schema-utils": {
+          "version": "2.7.0",
+          "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-2.7.0.tgz",
+          "integrity": "sha512-0ilKFI6QQF5nxDZLFn2dMjvc4hjg/Wkg7rHd3jK6/A4a1Hl9VFdQWvgB1UMGoU94pad1P/8N7fMcEnLnSiju8A==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "@types/json-schema": "^7.0.4",
+            "ajv": "^6.12.2",
+            "ajv-keywords": "^3.4.1"
+          }
+        },
+        "semver": {
+          "version": "7.3.5",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz",
+          "integrity": "sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "lru-cache": "^6.0.0"
+          }
+        },
+        "supports-color": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "has-flag": "^4.0.0"
+          }
+        },
+        "yallist": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
+          "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
+          "dev": true,
+          "optional": true
+        }
       }
     },
     "@vue/cli-plugin-vuex": {
@@ -1748,6 +1864,16 @@
           "integrity": "sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A==",
           "dev": true
         },
+        "ansi-styles": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "color-convert": "^2.0.1"
+          }
+        },
         "cacache": {
           "version": "13.0.1",
           "resolved": "https://registry.npmjs.org/cacache/-/cacache-13.0.1.tgz",
@@ -1774,6 +1900,34 @@
             "unique-filename": "^1.1.1"
           }
         },
+        "chalk": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
+          "integrity": "sha512-qwx12AxXe2Q5xQ43Ac//I6v5aXTipYrSESdOgzrN+9XjgEpyjpKuvSGaN4qE93f7TQTlerQQ8S+EQ0EyDoVL1A==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "ansi-styles": "^4.1.0",
+            "supports-color": "^7.1.0"
+          }
+        },
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "color-name": "~1.1.4"
+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+          "dev": true,
+          "optional": true
+        },
         "fs-extra": {
           "version": "7.0.1",
           "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-7.0.1.tgz",
@@ -1785,6 +1939,13 @@
             "universalify": "^0.1.0"
           }
         },
+        "has-flag": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+          "dev": true,
+          "optional": true
+        },
         "jsonfile": {
           "version": "4.0.0",
           "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-4.0.0.tgz",
@@ -1794,6 +1955,18 @@
             "graceful-fs": "^4.1.6"
           }
         },
+        "loader-utils": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-2.0.0.tgz",
+          "integrity": "sha512-rP4F0h2RaWSvPEkD7BLDFQnvSf+nK+wr3ESUjNTyAGobqrijmW92zc+SO6d4p4B1wh7+B/Jg1mkQe5NYUEHtHQ==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "big.js": "^5.2.2",
+            "emojis-list": "^3.0.0",
+            "json5": "^2.1.2"
+          }
+        },
         "source-map": {
           "version": "0.6.1",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
@@ -1810,6 +1983,16 @@
             "minipass": "^3.1.1"
           }
         },
+        "supports-color": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "has-flag": "^4.0.0"
+          }
+        },
         "terser-webpack-plugin": {
           "version": "2.3.8",
           "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-2.3.8.tgz",
@@ -1832,6 +2015,18 @@
           "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
           "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==",
           "dev": true
+        },
+        "vue-loader-v16": {
+          "version": "npm:vue-loader@16.2.0",
+          "resolved": "https://registry.npmjs.org/vue-loader/-/vue-loader-16.2.0.tgz",
+          "integrity": "sha512-TitGhqSQ61RJljMmhIGvfWzJ2zk9m1Qug049Ugml6QP3t0e95o0XJjk29roNEiPKJQBEi8Ord5hFuSuELzSp8Q==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "chalk": "^4.1.0",
+            "hash-sum": "^2.0.0",
+            "loader-utils": "^2.0.0"
+          }
         }
       }
     },
@@ -5442,122 +5637,6 @@
         "worker-rpc": "^0.1.0"
       }
     },
-    "fork-ts-checker-webpack-plugin-v5": {
-      "version": "npm:fork-ts-checker-webpack-plugin@5.2.1",
-      "resolved": "https://registry.npmjs.org/fork-ts-checker-webpack-plugin/-/fork-ts-checker-webpack-plugin-5.2.1.tgz",
-      "integrity": "sha512-SVi+ZAQOGbtAsUWrZvGzz38ga2YqjWvca1pXQFUArIVXqli0lLoDQ8uS0wg0kSpcwpZmaW5jVCZXQebkyUQSsw==",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "@babel/code-frame": "^7.8.3",
-        "@types/json-schema": "^7.0.5",
-        "chalk": "^4.1.0",
-        "cosmiconfig": "^6.0.0",
-        "deepmerge": "^4.2.2",
-        "fs-extra": "^9.0.0",
-        "memfs": "^3.1.2",
-        "minimatch": "^3.0.4",
-        "schema-utils": "2.7.0",
-        "semver": "^7.3.2",
-        "tapable": "^1.0.0"
-      },
-      "dependencies": {
-        "ansi-styles": {
-          "version": "4.3.0",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
-          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "color-convert": "^2.0.1"
-          }
-        },
-        "chalk": {
-          "version": "4.1.0",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
-          "integrity": "sha512-qwx12AxXe2Q5xQ43Ac//I6v5aXTipYrSESdOgzrN+9XjgEpyjpKuvSGaN4qE93f7TQTlerQQ8S+EQ0EyDoVL1A==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "ansi-styles": "^4.1.0",
-            "supports-color": "^7.1.0"
-          }
-        },
-        "color-convert": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
-          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "color-name": "~1.1.4"
-          }
-        },
-        "color-name": {
-          "version": "1.1.4",
-          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
-          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
-          "dev": true,
-          "optional": true
-        },
-        "has-flag": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
-          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
-          "dev": true,
-          "optional": true
-        },
-        "lru-cache": {
-          "version": "6.0.0",
-          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
-          "integrity": "sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "yallist": "^4.0.0"
-          }
-        },
-        "schema-utils": {
-          "version": "2.7.0",
-          "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-2.7.0.tgz",
-          "integrity": "sha512-0ilKFI6QQF5nxDZLFn2dMjvc4hjg/Wkg7rHd3jK6/A4a1Hl9VFdQWvgB1UMGoU94pad1P/8N7fMcEnLnSiju8A==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "@types/json-schema": "^7.0.4",
-            "ajv": "^6.12.2",
-            "ajv-keywords": "^3.4.1"
-          }
-        },
-        "semver": {
-          "version": "7.3.4",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.4.tgz",
-          "integrity": "sha512-tCfb2WLjqFAtXn4KEdxIhalnRtoKFN7nAwj0B3ZXCbQloV2tq5eDbcTmT68JJD3nRJq24/XgxtQKFIpQdtvmVw==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "lru-cache": "^6.0.0"
-          }
-        },
-        "supports-color": {
-          "version": "7.2.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
-          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "has-flag": "^4.0.0"
-          }
-        },
-        "yallist": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
-          "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
-          "dev": true,
-          "optional": true
-        }
-      }
-    },
     "form-data": {
       "version": "2.3.3",
       "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.3.3.tgz",
@@ -11707,87 +11786,6 @@
         }
       }
     },
-    "vue-loader-v16": {
-      "version": "npm:vue-loader@16.1.2",
-      "resolved": "https://registry.npmjs.org/vue-loader/-/vue-loader-16.1.2.tgz",
-      "integrity": "sha512-8QTxh+Fd+HB6fiL52iEVLKqE9N1JSlMXLR92Ijm6g8PZrwIxckgpqjPDWRP5TWxdiPaHR+alUWsnu1ShQOwt+Q==",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "chalk": "^4.1.0",
-        "hash-sum": "^2.0.0",
-        "loader-utils": "^2.0.0"
-      },
-      "dependencies": {
-        "ansi-styles": {
-          "version": "4.3.0",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
-          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "color-convert": "^2.0.1"
-          }
-        },
-        "chalk": {
-          "version": "4.1.0",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
-          "integrity": "sha512-qwx12AxXe2Q5xQ43Ac//I6v5aXTipYrSESdOgzrN+9XjgEpyjpKuvSGaN4qE93f7TQTlerQQ8S+EQ0EyDoVL1A==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "ansi-styles": "^4.1.0",
-            "supports-color": "^7.1.0"
-          }
-        },
-        "color-convert": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
-          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "color-name": "~1.1.4"
-          }
-        },
-        "color-name": {
-          "version": "1.1.4",
-          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
-          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
-          "dev": true,
-          "optional": true
-        },
-        "has-flag": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
-          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
-          "dev": true,
-          "optional": true
-        },
-        "loader-utils": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-2.0.0.tgz",
-          "integrity": "sha512-rP4F0h2RaWSvPEkD7BLDFQnvSf+nK+wr3ESUjNTyAGobqrijmW92zc+SO6d4p4B1wh7+B/Jg1mkQe5NYUEHtHQ==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "big.js": "^5.2.2",
-            "emojis-list": "^3.0.0",
-            "json5": "^2.1.2"
-          }
-        },
-        "supports-color": {
-          "version": "7.2.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
-          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "has-flag": "^4.0.0"
-          }
-        }
-      }
-    },
     "vue-property-decorator": {
       "version": "9.1.2",
       "resolved": "https://registry.npmjs.org/vue-property-decorator/-/vue-property-decorator-9.1.2.tgz",
@@ -11844,6 +11842,11 @@
       "resolved": "https://registry.npmjs.org/vuex/-/vuex-3.6.0.tgz",
       "integrity": "sha512-W74OO2vCJPs9/YjNjW8lLbj+jzT24waTo2KShI8jLvJW8OaIkgb3wuAMA7D+ZiUxDOx3ubwSZTaJBip9G8a3aQ=="
     },
+    "vuex-class": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/vuex-class/-/vuex-class-0.3.2.tgz",
+      "integrity": "sha512-m0w7/FMsNcwJgunJeM+wcNaHzK2KX1K1rw2WUQf7Q16ndXHo7pflRyOV/E8795JO/7fstyjH3EgqBI4h4n4qXQ=="
+    },
     "watchpack": {
       "version": "1.7.5",
       "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-1.7.5.tgz",
diff --git a/package.json b/package.json
index 64e451a..005397e 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,8 @@
     "vue-class-component": "^7.2.3",
     "vue-property-decorator": "^9.1.2",
     "vue-router": "^3.2.0",
-    "vuex": "^3.4.0"
+    "vuex": "^3.4.0",
+    "vuex-class": "^0.3.2"
   },
   "devDependencies": {
     "@vue/cli-plugin-babel": "~4.5.0",
diff --git a/src/App.vue b/src/App.vue
index d875017..66b8968 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -7,7 +7,10 @@
   </div>
 </template>
 <script lang="ts">
-import { Component, Vue, Watch } from "vue-property-decorator";
+import { Component, Vue } from 'vue-property-decorator';
+import { Action, Getter } from 'vuex-class';
+
+import { DeviceType } from '@/store/types/app';
 
 // components
 import Header from "@/components/Header.vue";
@@ -22,6 +25,22 @@ import FooterPrimary from "@/components/FooterPrimary.vue";
   },
 })
 export default class App extends Vue {
+  @Action('toggleDevice', { namespace: 'app' }) private toggleDevice!: (device: DeviceType) => void;
+  @Getter('device', { namespace: 'app' }) private device!: DeviceType;
+  private deviceTypeMediaQuery: MediaQueryList = window.matchMedia('(min-width: 900px)');
+
+  public mounted() {
+    this.detectDeviceType(this.deviceTypeMediaQuery);
+
+    // add change listener instead of resize listener
+    if (this.deviceTypeMediaQuery.addEventListener) {
+      this.deviceTypeMediaQuery.addEventListener('change', this.detectDeviceType);
+    } else {
+      // sad safari
+      this.deviceTypeMediaQuery.addListener(this.detectDeviceType);
+    }
+  }
+
   public isRoot(): boolean {
     if (
       this.$route.name == "CFP" ||
@@ -31,6 +50,16 @@ export default class App extends Vue {
       return false;
     else return true;
   }
+
+  private detectDeviceType (mq: (MediaQueryList | MediaQueryListEvent)): void {
+    const isDesktop: boolean = mq.matches;
+
+    if (isDesktop) {
+      this.toggleDevice(DeviceType.DESKTOP);
+    } else {
+      this.toggleDevice(DeviceType.MOBILE);
+    }
+  }
 }
 </script>
 <style lang="scss">