message: PanelHeader: fixed left padding when left is empty (Android)
diff: height: 100%;
  }
  - .PanelHeader--android .PanelHeader__left {
  + .PanelHeader--android .PanelHeader-left-in {
  padding-right: 6px;
  }
  - .PanelHeader--android .PanelHeader__right {
  + .PanelHeader--android .PanelHeader-left-in:empty {
  + padding-right: 12px;
  + }
  +
  + .PanelHeader--android .PanelHeader-right {
  padding-left: 6px;
  }
  