fix(admin): add favicon and page-aware titles

admin/src/App.vue

@@ -1,10 +1,15 @@
 <script setup lang="ts">
-import { computed } from 'vue'
+import { computed, watchEffect } from 'vue'
 import { RouterView, useRoute } from 'vue-router'
+import { documentTitleForRoute } from './app/pageTitle'
 import AppShell from './components/shell/AppShell.vue'
 
 const route = useRoute()
 const inShell = computed(() => route.meta.shell === true)
+
+watchEffect(() => {
+  document.title = documentTitleForRoute(route)
+})
 </script>
 
 <template>