feat: introduce layouts (#28)

pages/[...all].vue

@@ -0,0 +1,11 @@
+<script setup lang="ts">
+definePageMeta({
+  layout: '404',
+})
+</script>
+
+<template>
+  <div>
+    Not Found
+  </div>
+</template>

pages/hi/[id].vue

@@ -6,6 +6,10 @@ const name = route.params.id
 watchEffect(() => {
   user.setNewName(route.params.id as string)
 })
+
+definePageMeta({
+  layout: 'home',
+})
 </script>
 
 <template>