add lineWrapping extension

packages/editor/src/services/codemirror-editor/use-codemirror-editor/use-codemirror-editor.ts

@@ -43,6 +43,7 @@ export type UseCodeMirrorEditor = {
 
 
 const defaultExtensions: Extension[] = [
+  EditorView.lineWrapping,
   markdown({ base: markdownLanguage, codeLanguages: languages }),
   keymap.of([indentWithTab]),
   Prec.lowest(keymap.of(defaultKeymap)),