Basic layout, navigation, first empty pages

lib/screens/dashboard_screen.dart

@@ -0,0 +1,15 @@
+import 'package:flutter/material.dart';
+
+class DashboardScreen extends StatefulWidget {
+  const DashboardScreen({super.key});
+
+  @override
+  State<DashboardScreen> createState() => _DashboardScreenState();
+}
+
+class _DashboardScreenState extends State<DashboardScreen> {
+  @override
+  Widget build(BuildContext context) {
+    return const Text("Dashboard");
+  }
+}