message: PanelHeader: fixed height calculation for iOS
diff: }
  .PanelHeader--ios .PanelHeader__in {
  - height: 100%;
  + height: 44px;
  padding-top: 20px;
  padding-top: constant(safe-area-inset-top);
  padding-top: env(safe-area-inset-top);
  }
  .PanelHeader--ios .PanelHeader__container {
  - height: 100%;
  + height: 44px;
  justify-content: space-between;
  align-items: flex-start;
  }
  - .PanelHeader--ios .PanelHeader__bg {
  - height: 100%;
  - }
  + .PanelHeader--ios .PanelHeader__bg {}
  .PanelHeader--ios .PanelHeader-bg {
  - height: 100%;
  + height: 44px;
  padding-top: 20px;
  padding-top: constant(safe-area-inset-top);
  padding-top: env(safe-area-inset-top);
  