migration done

app/lib/core/routing/routes.dart

@@ -60,7 +60,7 @@ part 'routes.bangs.dart';
 part 'routes.feeds.dart';
 
 @TypedGoRoute<AboutRoute>(name: 'AboutRoute', path: '/about')
-class AboutRoute extends GoRouteData with _$AboutRoute {
+class AboutRoute extends GoRouteData with $AboutRoute {
   @override
   Page<void> buildPage(BuildContext context, GoRouterState state) {
     return DialogPage(builder: (_) => const AboutDialogScreen());
@@ -71,7 +71,7 @@ class AboutRoute extends GoRouteData with _$AboutRoute {
   name: 'OnboardingRoute',
   path: '/onboarding/:currentRevision/:targetRevision',
 )
-class OnboardingRoute extends GoRouteData with _$OnboardingRoute {
+class OnboardingRoute extends GoRouteData with $OnboardingRoute {
   final int currentRevision;
   final int targetRevision;