fix mutations

Author: slax57

examples/ra-offline/src/App.tsx

@@ -15,9 +15,6 @@ const baseQueryClient = new QueryClient({
       gcTime: 1000 * 60 * 60 * 24, // 24 hours
       networkMode: "offlineFirst",
     },
-    mutations: {
-      networkMode: "offlineFirst",
-    },
   },
 });