message: Ensure PersistedElements are refreshed when AuxPanel scrolls
  If the screen is not tall enough, AuxPanel starts scrolling its content.
  If it contains PersistedElements, they need to be notified about
  scrolling as they only listen on resize events to move their element.
diff: @@ -141,6 +141,15 @@ export default createReactClass({
  return counters;
  },
  + _onScroll: function(rect) {
  + if (this.props.onResize) {
  + this.props.onResize();
  + }
  +
  + /* Force refresh of PersistedElements which may be partially hidden */
  + window.dispatchEvent(new Event('resize'));
  + },
  +
  render: function() {
  const CallView = sdk.getComponent("voip.CallView");
  const TintableSvg = sdk.getComponent("elements.TintableSvg");
  @@ -265,7 +274,7 @@ export default createReactClass({
  }
  return (
  - <AutoHideScrollbar className={classes} style={style} >
  + <AutoHideScrollbar className={classes} style={style} onScroll={this._onScroll}>
  { stateViews }
  { appsDrawer }
  { fileDropTarget }
  