message: Bring hide stickers icon to front when menu open.
diff: @@ -182,7 +182,7 @@ export default class Stickerpack extends React.Component {
  <div
  id='stickersButton'
  key="controls_hide_stickers"
  - className="mx_MessageComposer_stickers"
  + className="mx_MessageComposer_stickers mx_MessageComposer_hideStickers"
  onClick={this.onHideStickersClick}
  ref='target'
  title={_t("Hide Stickers")}>
  