added localization for settings

lib/pages/settings_page.dart

@@ -1,11 +1,15 @@
 import 'package:flutter/material.dart';
 
+import '../l10n/app_localizations.dart';
+
 class SettingsPage extends StatelessWidget {
   static const routeName = '/settings';
   const SettingsPage({super.key});
 
   @override
   Widget build(BuildContext context) {
-    return const Placeholder();
+    return Scaffold(
+      appBar: AppBar(title: Text(AppLocalizations.of(context)!.settings)),
+    );
   }
 }