fix: handle null context in MarkdownHtmlWidget and improve test stability with pumpAndSettle calls

test/features/diary/presentation/widgets/chosen_diet_widget_content_test.dart

@@ -34,6 +34,7 @@ void main() {
           ),
         ),
       );
+      await tester.pumpAndSettle();
 
       expect(find.byType(ChosenDietWidgetContent), findsOneWidget);
       expect(find.text('Test Diet'), findsOneWidget);
@@ -50,6 +51,7 @@ void main() {
           ),
         ),
       );
+      await tester.pumpAndSettle();
 
       expect(find.byType(ChosenDietWidgetContent), findsOneWidget);
     });
@@ -65,6 +67,7 @@ void main() {
           ),
         ),
       );
+      await tester.pumpAndSettle();
 
       expect(find.text('My Diet'), findsOneWidget);
     });

test/features/diary/presentation/widgets/chosen_plan_widget_content_test.dart

@@ -37,6 +37,7 @@ void main() {
         planName: 'Test Plan',
         planDuration: 14,
       ));
+      await tester.pumpAndSettle();
 
       expect(find.byType(ChosenPlanWidgetContent), findsOneWidget);
       expect(find.text('Test Plan'), findsOneWidget);
@@ -48,6 +49,7 @@ void main() {
         planName: 'My Plan',
         planDuration: 7,
       ));
+      await tester.pumpAndSettle();
 
       expect(find.byType(ChosenPlanWidgetContent), findsOneWidget);
       expect(find.textContaining('3'), findsOneWidget);
@@ -60,6 +62,7 @@ void main() {
         planName: 'Long Plan',
         planDuration: 30,
       ));
+      await tester.pumpAndSettle();
 
       expect(find.byType(ChosenPlanWidgetContent), findsOneWidget);
       expect(find.text('Long Plan'), findsOneWidget);

test/features/feed/presentation/widgets/comments_widget_test.dart

@@ -78,6 +78,7 @@ void main() {
           ),
         ),
       );
+      await tester.pumpAndSettle();
 
       expect(find.byType(CommentsWidget), findsOneWidget);
     });

test/features/registration_v2/presentation/widgets/show_successful_registration_bottom_sheet_test.dart

@@ -63,6 +63,7 @@ void main() {
 
       // Act
       await tester.pumpWidget(createTestWidget(const SizedBox(), mockCubit));
+      await tester.pump();
       await tester.tap(find.text('Show Bottom Sheet'));
       await tester.pumpAndSettle();
 
@@ -107,6 +108,7 @@ void main() {
 
       // Act
       await tester.pumpWidget(createTestWidgetError(const SizedBox(), mockCubit));
+      await tester.pump();
       await tester.tap(find.text('Show Bottom Sheet'));
       await tester.pumpAndSettle();
 

test/features/settings/presentation/pages/change_password_screen_test.dart

@@ -54,6 +54,7 @@ void main() {
           home: ChangePasswordScreen(settingsEntity: settingsEntity),
         ),
       );
+      await tester.pumpAndSettle();
 
       expect(find.byType(ChangePasswordScreen), findsOneWidget);
       expect(find.text('Смена пароля'), findsOneWidget);
@@ -80,6 +81,7 @@ void main() {
           home: ChangePasswordScreen(settingsEntity: settingsEntity),
         ),
       );
+      await tester.pumpAndSettle();
 
       expect(find.byType(AppBar), findsOneWidget);
       expect(find.text('Смена пароля'), findsOneWidget);