message: fix(Stepper): incorrect text color in iOS14 when disabled
diff: &:disabled {
  color: @stepper-input-disabled-text-color;
  background-color: @stepper-input-disabled-background-color;
  - -webkit-text-fill-color: currentColor; // fix disabled color in iOS
  + // fix disabled color in iOS
  + -webkit-text-fill-color: @stepper-input-disabled-text-color;
  opacity: 1;
  }
  