[Style] Rename CFP.scss to header.scss; sparate from main

src/components/CFP/Header.vue

@@ -77,3 +77,7 @@ import { Component, Prop, Vue } from 'vue-property-decorator';
 @Component
 export default class CfpHeader extends Vue {}
 </script>
+
+<style lang="scss">
+@import '@/assets/scss/CFP/header.scss';
+</style>