message: fix(expressive): number input expressive changes
diff: .#{$prefix}--number input[type='number'] {
  height: carbon--rem(48px); /* $carbon--container-04 */
  }
  +
  + .#{$prefix}--number__control-btn.up-icon,
  + .#{$prefix}--number__control-btn.down-icon {
  + height: $spacing-06;
  +
  + svg {
  + height: carbon--rem(5px);
  + width: carbon--rem(10px);
  + }
  + }
  }
  