fix: solve the problem that Chinese ime cannot continue deleting afte…

…r deleting input content (#672)

lib/src/editor/editor_component/service/ime/non_delta_input_service.dart

@@ -192,6 +192,11 @@ class NonDeltaTextInputService extends TextInputService with TextInputClient {
         delta is TextEditingDeltaNonTextUpdate) {
       composingTextRange = delta.composing;
     }
+
+    // solve the issue where the Chinese IME doesn't continue deleting after the input content has been deleted.
+    if (composingTextRange?.isCollapsed ?? false) {
+      composingTextRange = TextRange.empty;
+    }
   }
 }