message: fix PanelHeader__content left padding
diff: max-width: 100%;
  }
  -.PanelHeader--android .PanelHeader__content > *,
  -.PanelHeader--vkcom .PanelHeader__content > * {
  +.PanelHeader--android .PanelHeader__content > * {
  padding: 0 12px;
  }
  