Sidebar menu and settings page skeleton

lib/screens/second_route.dart

@@ -0,0 +1,15 @@
+import 'package:flutter/material.dart';
+
+class Settings extends StatelessWidget {
+  const Settings({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Settings'),
+      ),
+      body: const Center(child: Text("Settings here")),
+    );
+  }
+}