message: remove appearance from SubnavigationButton
diff: */
  .SubnavigationButton--selected:not(.SubnavigationButton--mode-tertiary)
  .Counter {
  - background-color: var(
  - --button_primary_foreground,
  - var(--vkui--color_background_contrast)
  - );
  - color: var(--button_primary_background, var(--vkui--color_text_accent));
  + background-color: var(--vkui--color_background_contrast);
  + color: var(--vkui--color_text_accent);
  }
  