sync remote selection (#1207)

* sync remote selection

* skip deleted elements

* remove unnecessary condition & change naming

src/data/index.ts

@@ -49,6 +49,7 @@ export type SocketUpdateDataSource = {
     payload: {
       socketID: string;
       pointerCoords: { x: number; y: number };
+      selectedElementIds: AppState["selectedElementIds"];
     };
   };
 };