feat: enable composable auto import

src/components/Footer.vue

@@ -1,7 +1,3 @@
-<script setup lang="ts">
-import { isDark, toggleDark } from '~/composables'
-</script>
-
 <template>
   <nav text-xl mt-6 inline-flex gap-2>
     <button class="icon-btn !outline-none" @click="toggleDark()">