chore: enable type checking in more places

app.vue

@@ -1,4 +1,4 @@
-<script setup>
+<script setup lang="ts">
 setupPageHeader()
 await setupI18n()
 

components/nav/NavSide.vue

@@ -1,4 +1,4 @@
-<script setup>
+<script setup lang="ts">
 const { notifications } = useNotifications()
 </script>
 

components/nav/NavTitle.vue

@@ -1,4 +1,4 @@
-<script setup>
+<script setup lang="ts">
 const sub = process.dev ? 'dev' : useRuntimeConfig().public.env === 'staging' ? 'preview' : 'alpha'
 </script>