feat: enable composable auto import

src/App.vue

@@ -2,8 +2,6 @@
 // https://github.com/vueuse/head
 // you can use this to manipulate the document head in any components,
 // they will be rendered correctly in the html results with vite-ssg
-import { isDark, preferredDark } from '~/composables'
-
 useHead({
   title: 'Vitesse',
   meta: [