message: fix(expressive): small expressive theme styling
diff: padding: calc(0.875rem - 4px) 13px;
  }
  - &.#{$prefix}--btn--field {
  - padding: 6px 61px 6px 13px;
  - }
  -
  - &.#{$prefix}--btn--field.#{$prefix}--btn--ghost {
  - padding: 6px 13px;
  - }
  -
  .#{$prefix}--btn__icon {
  width: auto;
  height: auto;
  }
  }
  + .#{$prefix}--btn--field,
  + .#{$prefix}--btn--sm {
  + padding: 6px 61px 6px 13px;
  +
  + &.#{$prefix}--btn--ghost {
  + padding: 6px 13px;
  + }
  + }
  +
  .#{$prefix}--btn--icon-only {
  padding: calc(0.875rem - 3px);
  