feat: expose StoreAction in relation to multiplayer history (#7898)

Improved Store API and improved handling of actions to eliminate potential concurrency issues

excalidraw-app/data/index.ts

@@ -269,7 +269,6 @@ export const loadScene = async (
     // in the scene database/localStorage, and instead fetch them async
     // from a different database
     files: data.files,
-    commitToStore: false,
   };
 };