update: mobile navbar

src/lib/isMobile.js

@@ -0,0 +1,14 @@
+import { reactive } from 'vue';
+
+const mobileMediaQuery = 'screen and (max-width: 768px)';
+const matchMedia = window.matchMedia(mobileMediaQuery);
+
+const isMobile = reactive(matchMedia.matches);
+
+matchMedia.addEventListener('change', (event) => {
+  isMobile = event.matches;
+});
+
+export const install = (app) => {
+ app.config.globalProperties.$isMobile = isMobile;
+}