Fix merge conflict

flutter_quill_extensions/pubspec.yaml

@@ -1,10 +1,6 @@
 name: flutter_quill_extensions
 description: Embed extensions for flutter_quill including image, video, formula and etc.
-<<<<<<< HEAD
 version: 9.0.2-dev
-=======
-version: 9.0.0
->>>>>>> upstream/master
 homepage: https://github.com/singerdmx/flutter-quill/tree/master/flutter_quill_extensions/
 repository: https://github.com/singerdmx/flutter-quill/tree/master/flutter_quill_extensions/
 issue_tracker: https://github.com/singerdmx/flutter-quill/issues/

flutter_quill_test/pubspec.yaml

@@ -1,10 +1,6 @@
 name: flutter_quill_test
 description: Test utilities for flutter_quill which includes methods to simplify interacting with the editor in test cases.
-<<<<<<< HEAD
 version: 9.0.2-dev
-=======
-version: 9.0.0
->>>>>>> upstream/master
 homepage: https://github.com/singerdmx/flutter-quill/tree/master/flutter_quill_test/
 repository: https://github.com/singerdmx/flutter-quill/tree/master/flutter_quill_test/
 issue_tracker: https://github.com/singerdmx/flutter-quill/issues/

lib/src/widgets/toolbar/buttons/hearder_style/select_header_style_button.dart

@@ -1,18 +1,11 @@
 import 'package:flutter/material.dart';
 
 import '../../../../../translations.dart';
-<<<<<<< HEAD
 import '../../../../extensions/quill_configurations_ext.dart';
-import '../../../../models/config/toolbar/buttons/select_header_style_button_configurations.dart';
 import '../../../../models/documents/attribute.dart';
 import '../../../../models/themes/quill_icon_theme.dart';
 import '../../../quill/quill_controller.dart';
 import '../../base_toolbar.dart';
-=======
-import '../../../../models/config/toolbar/buttons/select_header_style_configurations.dart';
-import '../../../../models/documents/attribute.dart';
-import '../../../quill/quill_controller.dart';
->>>>>>> upstream/master
 
 enum _HeaderStyleOptions {
   normal,

lib/src/widgets/toolbar/simple_toolbar.dart

@@ -8,7 +8,6 @@ import '../utils/provider.dart';
 import 'base_toolbar.dart';
 import 'buttons/alignment/select_alignment_buttons.dart';
 import 'buttons/arrow_indicated_list_button.dart';
-import 'buttons/hearder_style/select_header_style_button.dart';
 
 class QuillSimpleToolbar extends StatelessWidget
     implements PreferredSizeWidget {