fix(typo): fix typo ClipboardServiceProvider.instacne (#1983)

* fix(typo): deprecate ClipboardServiceProvider.instacne as it's a typo, add ClipboardServiceProvider.instance and update usages

* chore: update deprecation message of ClipboardServiceProvider.instacne

flutter_quill_extensions/lib/flutter_quill_extensions.dart

@@ -42,7 +42,7 @@ export 'utils/utils.dart';
 class FlutterQuillExtensions {
   const FlutterQuillExtensions._();
 
-  /// Override default implementation of [ClipboardServiceProvider.instacne]
+  /// Override default implementation of [ClipboardServiceProvider.instance]
   /// to allow `flutter_quill` package to use `super_clipboard` plugin
   /// to support rich text features, gif and images.
   static void useSuperClipboardPlugin() {

lib/src/services/clipboard/clipboard_service_provider.dart

@@ -7,7 +7,11 @@ import 'default_clipboard_service.dart';
 class ClipboardServiceProvider {
   const ClipboardServiceProvider._();
   static ClipboardService _instance = DefaultClipboardService();
-  static ClipboardService get instacne => _instance;
+
+  static ClipboardService get instance => _instance;
+
+  @Deprecated('instacne is a typo, use instance instead.')
+  static ClipboardService get instacne => instance;
 
   static void setInstance(ClipboardService service) {
     _instance = service;

lib/src/widgets/quill/quill_controller.dart

@@ -568,7 +568,7 @@ class QuillController extends ChangeNotifier {
 
   /// Return true if can paste using HTML
   Future<bool> _pasteHTML() async {
-    final clipboardService = ClipboardServiceProvider.instacne;
+    final clipboardService = ClipboardServiceProvider.instance;
 
     Future<String?> getHTML() async {
       if (await clipboardService.canProvideHtmlTextFromFile()) {
@@ -594,7 +594,7 @@ class QuillController extends ChangeNotifier {
 
   /// Return true if can paste using Markdown
   Future<bool> _pasteMarkdown() async {
-    final clipboardService = ClipboardServiceProvider.instacne;
+    final clipboardService = ClipboardServiceProvider.instance;
 
     Future<String?> getMarkdown() async {
       if (await clipboardService.canProvideMarkdownTextFromFile()) {

lib/src/widgets/raw_editor/raw_editor_state.dart

@@ -184,7 +184,7 @@ class QuillRawEditorState extends EditorState
       return;
     }
 
-    final clipboardService = ClipboardServiceProvider.instacne;
+    final clipboardService = ClipboardServiceProvider.instance;
 
     final onImagePaste = widget.configurations.onImagePaste;
     if (onImagePaste != null) {

lib/src/widgets/toolbar/buttons/clipboard_button.dart

@@ -27,7 +27,7 @@ class ClipboardMonitor {
   }
 
   Future<void> _update(void Function() listener) async {
-    final clipboardService = ClipboardServiceProvider.instacne;
+    final clipboardService = ClipboardServiceProvider.instance;
     if (await clipboardService.canPaste()) {
       _canPaste = true;
       listener();