fix: handle flushbar dismissal

integration_test/core/app_launcher.dart

@@ -3,15 +3,11 @@ import "dart:async";
 import "package:cake_wallet/main.dart" as app;
 import "package:flutter/foundation.dart";
 import "package:flutter_test/flutter_test.dart";
-import "package:integration_test/integration_test.dart";
 
 import "benign_errors.dart";
 
 void integrationTest(String description, Future<void> Function(WidgetTester tester) body) {
   testWidgets(description, (tester) async {
-    IntegrationTestWidgetsFlutterBinding.instance.framePolicy =
-        LiveTestWidgetsFlutterBindingFramePolicy.fullyLive;
-
     final completer = Completer<void>();
 
     final run = runZonedGuarded(() async {

lib/src/screens/auth/auth_page.dart

@@ -116,9 +116,9 @@ class AuthPagePinCodeStateImpl extends AuthPageState<AuthPage> {
 
     /// not the best scenario, but WidgetsBinding is not behaving correctly on Android
     await Future<void>.delayed(Duration(milliseconds: 50));
-    await _authBar?.dismiss();
+    await _removeBar(_authBar);
     await Future<void>.delayed(Duration(milliseconds: 50));
-    await _progressBar?.dismiss();
+    await _removeBar(_progressBar);
     await Future<void>.delayed(Duration(milliseconds: 50));
     if (route != null) {
       Navigator.of(_key.currentContext!).pushReplacementNamed(route, arguments: arguments);
@@ -153,6 +153,21 @@ class AuthPagePinCodeStateImpl extends AuthPageState<AuthPage> {
     );
   }
 
+  Future<void> _removeBar(Flushbar<void>? bar) async {
+    final barRoute = bar?.flushbarRoute;
+
+    if (bar == null || barRoute == null || !barRoute.isActive) {
+      return;
+    }
+
+    if (bar.isShowing()) {
+      await bar.dismiss();
+      return;
+    }
+
+    barRoute.navigator?.removeRoute(barRoute);
+  }
+
   void dismissFlushBar(Flushbar<dynamic>? bar) {
     WidgetsBinding.instance.addPostFrameCallback((_) async {
       await bar?.dismiss();