fisrt three screens

lib/main.dart

@@ -0,0 +1,19 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_native_splash/flutter_native_splash.dart';
+
+import 'screens/splash_screen.dart';
+
+void main() {
+  WidgetsBinding widgetsBinding = WidgetsFlutterBinding.ensureInitialized();
+  FlutterNativeSplash.preserve(widgetsBinding: widgetsBinding);
+  runApp(const CodaApp());
+}
+
+class CodaApp extends StatelessWidget {
+  const CodaApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(debugShowCheckedModeBanner: false, home: SplashScreen());
+  }
+}