disable defaultkeymap

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

@@ -41,7 +41,7 @@ export const useCodeMirrorEditor = (props?: UseCodeMirror): UseCodeMirrorEditor
         extensions: defaultExtensions,
         indentWithTab: false,
         basicSetup: {
-          tabSize: 1,
+          defaultKeymap: false,
         },
       },
     );