Add cursor change to pointer when hovering on object

src/PointMap.js

@@ -39,6 +39,9 @@ class PointMap extends Component {
       let mouseover = null;
       if (e.picked) {
         mouseover = e.object.get_id();
+        document.body.style.cursor = "pointer";
+      } else {
+        document.body.style.cursor = "default";
       }
       return { ...prevState, mouseover };
     });