initialize settings page

There are no settings yet

lib/pages/settings_page.dart

@@ -5,7 +5,21 @@ class SettingsPage extends ConsumerWidget {
   const SettingsPage({super.key});
 
   @override
-  Widget build(BuildContext context, WidgetRef ref) {
-    return Placeholder();
-  }
+  Widget build(BuildContext context, WidgetRef ref) => Scaffold(
+    appBar: AppBar(
+      title: Text("Settings"),
+      actionsPadding: .symmetric(horizontal: 12),
+      actions: [
+        SearchAnchor(
+          builder: (context, controller) => IconButton(
+            icon: const Icon(Icons.search),
+            onPressed: controller.openView,
+          ),
+          suggestionsBuilder: (context, controller) {
+            return [];
+          },
+        ),
+      ],
+    ),
+  );
 }