Merge pull request #6313 from vector-im/luke/perf-room-list-dnd

Implement a simple shouldComponentUpdate for DNDRoomTile

src/components/views/rooms/DNDRoomTile.js

@@ -20,7 +20,7 @@ import RoomTile from 'matrix-react-sdk/lib/components/views/rooms/RoomTile';
 
 import classNames from 'classnames';
 
-export default class DNDRoomTile extends React.Component {
+export default class DNDRoomTile extends React.PureComponent {
     constructor() {
         super();
         this.getClassName = this.getClassName.bind(this);