Fix fav/boosts hotkeys not working on detailed statuses (#9006)

app/javascript/mastodon/features/status/index.js

@@ -181,7 +181,7 @@ class Status extends ImmutablePureComponent {
     if (status.get('reblogged')) {
       this.props.dispatch(unreblog(status));
     } else {
-      if (e.shiftKey || !boostModal) {
+      if ((e && e.shiftKey) || !boostModal) {
         this.handleModalReblog(status);
       } else {
         this.props.dispatch(openModal('BOOST', { status, onReblog: this.handleModalReblog }));