new home screen design

lib/main.dart

@@ -1,5 +1,7 @@
 import 'package:flutter/material.dart';
 
+import 'router.dart';
+
 void main() {
   runApp(const MainApp());
 }
@@ -9,12 +11,11 @@ class MainApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return const MaterialApp(
-      home: Scaffold(
-        body: Center(
-          child: Text('Hello World!'),
-        ),
-      ),
+    return MaterialApp.router(
+      themeMode: ThemeMode.dark,
+      darkTheme: ThemeData.dark(useMaterial3: true),
+      debugShowCheckedModeBanner: false,
+      routerConfig: router,
     );
   }
 }