message: fix(CardGrid): add size_cardgrid_padding_vertical
diff: }
  .CardGrid--s .Card {
  - width: calc((100% - 2 * 8px) / 3);
  + width: calc((100% - 2 * var(--vkui--size_cardgrid_padding--regular)) / 3);
  }
  .CardGrid--s .Card:nth-child(n + 4) {
  }
  .CardGrid + .CardGrid {
  - margin-top: 16px;
  + margin-top: calc(var(--vkui--size_cardgrid_padding_vertical--regular) * 2);
  }
  /**
  }
  .Group .CardGrid:first-child {
  - margin-top: 8px;
  + margin-top: var(--vkui--size_cardgrid_padding_vertical--regular);
  }
  .Group .CardGrid:last-child {
  - margin-bottom: 8px;
  + margin-bottom: var(--vkui--size_cardgrid_padding_vertical--regular);
  }
  