message: show rooms and people section when empty while filtering
diff: @@ -593,7 +593,7 @@ module.exports = React.createClass({
  subListsProps = subListsProps.filter((props => {
  const len = props.list.length + (props.extraTiles ? props.extraTiles.length : 0);
  - return len !== 0 || (props.onAddRoom && !this.props.searchFilter);
  + return len !== 0 || props.onAddRoom;
  }));
  return subListsProps.reduce((components, props, i) => {
  