refactor: remove two-way binding of OnChange plugin

src/components/LexicalOnChangePlugin.vue

@@ -1,27 +1,22 @@
 <script setup lang="ts">
 import type { EditorState, LexicalEditor } from 'lexical'
-import { $getRoot } from 'lexical'
 import { useEditor } from '../composables'
 import { useMounted } from '../composables/useMounted'
 
 const props = withDefaults(defineProps<{
   ignoreInitialChange?: boolean
   ignoreSelectionChange?: boolean
-  modelValue?: string
 }>(), {
   ignoreInitialChange: true,
   ignoreSelectionChange: false,
 })
 
 const emit = defineEmits<{
   (e: 'change', editorState: EditorState, editor: LexicalEditor): void
-  (e: 'update:modelValue', payload: string): void
 }>()
 
 const editor = useEditor()
 
-const getRoot = $getRoot
-
 useMounted(() => {
   return editor.registerUpdateListener(({ editorState, dirtyElements, dirtyLeaves, prevEditorState }) => {
     if (
@@ -35,10 +30,6 @@ useMounted(() => {
       return
 
     emit('change', editorState, editor)
-
-    editorState.read(() => {
-      emit('update:modelValue', getRoot().getTextContent())
-    })
   })
 })
 </script>