chore: add 2.10.5 changes

Author: AndrewAminInstabug

lib/src/utils/screen_rendering/instabug_widget_binding_observer.dart

@@ -23,7 +23,7 @@ class InstabugWidgetsBindingObserver extends WidgetsBindingObserver {
     if (InstabugScreenRenderManager.I.screenRenderEnabled) {
       InstabugScreenRenderManager.I.dispose();
     }
-    WidgetsBinding.instance.removeObserver(_instance);
+    WidgetsBinding.instance?.removeObserver(_instance);
   }
 
   void _handleResumedState() {

test/utils/screen_render/instabug_screen_render_manager_test.dart

@@ -1,18 +1,12 @@
-import 'dart:ui' show FrameTiming;
-
-import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:instabug_flutter/instabug_flutter.dart';
-import 'package:instabug_flutter/src/generated/apm.api.g.dart';
 import 'package:instabug_flutter/src/models/instabug_frame_data.dart';
 import 'package:instabug_flutter/src/models/instabug_screen_render_data.dart';
 import 'package:instabug_flutter/src/utils/screen_rendering/instabug_screen_render_manager.dart';
-import 'package:mockito/annotations.dart';
 import 'package:mockito/mockito.dart';
 
-import 'instabug_screen_render_manager_test.mocks.dart';
+import 'instabug_screen_render_manager_test_manual_mocks.dart';
 
-@GenerateMocks([ApmHostApi, WidgetsBinding, FrameTiming])
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();