disable defaultkeymap

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

@@ -35,7 +35,12 @@ export const useCodeMirrorEditor = (props?: UseCodeMirror): UseCodeMirrorEditor
   const mergedProps = useMemo<UseCodeMirror>(() => {
     return deepmerge(
       props ?? {},
-      { extensions: defaultExtensions },
+      {
+        extensions: defaultExtensions,
+        basicSetup: {
+          defaultKeymap: false,
+        },
+      },
     );
   }, [props]);