message: fix(Picker): optimize the click experience
diff: font-size: @picker-action-font-size;
  background-color: transparent;
  border: none;
  + cursor: pointer;
  &:active {
  background-color: @picker-action-active-color;
  &__columns {
  position: relative;
  display: flex;
  + cursor: pointer;
  }
  &__loading {
  