Fix detailed view of direct messages displaying a 0 boost count (#13244)

The boost count is already removed from private toots,
do the same with direct messages.

app/javascript/mastodon/features/status/components/detailed_status.js

@@ -166,7 +166,7 @@ export default class DetailedStatus extends ImmutablePureComponent {
       reblogIcon = 'lock';
     }
 
-    if (status.get('visibility') === 'private') {
+    if (['private', 'direct'].includes(status.get('visibility'))) {
       reblogLink = <Icon id={reblogIcon} />;
     } else if (this.context.router) {
       reblogLink = (