Simplify everything to match supabase example and also downgrade supabase

pages/dashboard.vue

@@ -1,11 +1,12 @@
 <script setup lang="ts">
+  const user = await useSupabaseUser();
   definePageMeta({
     middleware: ['auth'],
-    layout: "authenticated",
   });
 </script>
 <template>
   <div>
-    <h3>Dashboard</h3>
+    <h3>{{ user?.user_metadata.full_name }}'s Dashboard</h3>
+    <div>Stuff</div>
   </div>
 </template>