message: Hide WhoIsTyping component if the MessagePanel is shaped e.g file grid
diff: @@ -716,7 +716,7 @@ module.exports = React.createClass({
  );
  let whoIsTyping;
  - if (this.props.room) {
  + if (this.props.room && !this.props.tileShape) {
  whoIsTyping = (<WhoIsTypingTile
  room={this.props.room}
  onShown={this._onTypingShown}
  