message: feat(SplitLayout): use `--safe-area-inset-top` for android/vkcom
diff: .SplitLayout--android .SplitLayout__inner--header,
  .SplitLayout--vkcom .SplitLayout__inner--header {
  - margin-top: calc(-1 * var(--panelheader_height_android));
  + margin-top: calc(
  + -1 * calc(var(--panelheader_height_android) + var(--safe-area-inset-top))
  + );
  }
  .SplitLayout__popout {
  