message: UsersStack: vertical => layout, count => visibleCount
diff: color: var(--text_secondary);
  }
  -.UsersStack--v {
  +.UsersStack--l-vertical {
  flex-direction: column;
  justify-content: center;
  }
  line-height: 16px;
  }
  -.UsersStack--v .UsersStack__text {
  +.UsersStack--l-vertical .UsersStack__text {
  margin: 8px 0 0;
  text-align: center;
  }
  