Fix analysis warrnings

example/lib/pages/testing_home_page.dart

@@ -0,0 +1,13 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_quill/flutter_quill.dart';
+
+class TestingHomePage extends StatelessWidget {
+  const TestingHomePage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Scaffold(
+      appBar: QuillToolbar(),
+    );
+  }
+}

flutter_quill_extensions/lib/flutter_quill_extensions.dart

@@ -4,14 +4,12 @@ import 'package:flutter/foundation.dart' show kIsWeb;
 import 'package:flutter_quill/flutter_quill.dart';
 import 'package:meta/meta.dart' show immutable;
 
-import 'presentation/embeds/editor/formula.dart';
 import 'presentation/embeds/editor/image/image.dart';
 import 'presentation/embeds/editor/image/image_web.dart';
 import 'presentation/embeds/editor/video/video.dart';
 import 'presentation/embeds/editor/video/video_web.dart';
 import 'presentation/embeds/editor/webview.dart';
 import 'presentation/embeds/toolbar/camera_button/camera_button.dart';
-import 'presentation/embeds/toolbar/formula_button.dart';
 import 'presentation/embeds/toolbar/image_button/image_button.dart';
 import 'presentation/embeds/toolbar/video_button/video_button.dart';
 import 'presentation/models/config/editor/image/image.dart';
@@ -20,7 +18,6 @@ import 'presentation/models/config/editor/video/video.dart';
 import 'presentation/models/config/editor/video/video_web.dart';
 import 'presentation/models/config/editor/webview.dart';
 import 'presentation/models/config/toolbar/buttons/camera.dart';
-import 'presentation/models/config/toolbar/buttons/formula.dart';
 import 'presentation/models/config/toolbar/buttons/image.dart';
 import 'presentation/models/config/toolbar/buttons/media_button.dart';
 import 'presentation/models/config/toolbar/buttons/video.dart';