feat: onboarding page

lib/presentation/pages/splash/splash_page.dart

@@ -1,9 +1,12 @@
+import 'package:auto_route/auto_route.dart';
 import 'package:flutter/material.dart';
 import 'dart:async';
 
 import '../../../common/theme/theme.dart';
 import '../../components/assets/assets.gen.dart';
+import '../../router/app_router.gr.dart';
 
+@RoutePage()
 class SplashPage extends StatefulWidget {
   const SplashPage({super.key});
 
@@ -51,9 +54,7 @@ class _SplashPageState extends State<SplashPage>
 
   void _navigateToHome() {
     Timer(const Duration(milliseconds: 2500), () {
-      // Navigate to your main screen here
-      // Navigator.pushReplacement(context, MaterialPageRoute(builder: (context) => HomeScreen()));
-      print("Navigate to Home Screen");
+      context.router.push(OnboardingRoute());
     });
   }