fixes on onboarding flow

lib/main.dart

@@ -3,6 +3,7 @@ import 'package:provider/provider.dart';
 import 'package:go_router/go_router.dart';
 import 'package:qpay/screens/confirm/confirm_screen.dart';
 import 'package:qpay/screens/gateway/gateway_screen.dart';
+import 'package:qpay/screens/integration/integration_screen.dart';
 import 'package:qpay/screens/onboarding/complete_screen.dart';
 import 'package:qpay/screens/onboarding/landing/landing_screen.dart';
 import 'package:qpay/screens/onboarding/login/login_screen.dart';
@@ -117,6 +118,10 @@ class _MyAppState extends State<MyApp> {
                 path: '/receipt',
                 builder: (context, state) => const ReceiptScreen(),
               ),
+              GoRoute(
+                path: '/integration',
+                builder: (context, state) => const IntegrationScreen(),
+              ),
               GoRoute(
                 path: '/recipients',
                 builder: (context, state) => const RecipientsScreen(),