Remove legacy decorators syntax (#18357)

app/javascript/mastodon/features/community_timeline/index.jsx

@@ -30,8 +30,6 @@ const mapStateToProps = (state, { columnId }) => {
   };
 };
 
-export default @connect(mapStateToProps)
-@injectIntl
 class CommunityTimeline extends React.PureComponent {
 
   static contextTypes = {
@@ -158,3 +156,5 @@ class CommunityTimeline extends React.PureComponent {
   }
 
 }
+
+export default connect(mapStateToProps)(injectIntl(CommunityTimeline));