message: refactor(stepper): current start from 1
diff: @@ -23,15 +23,15 @@ export const VerticalStepper = forwardRef<HTMLDivElement | null, VStepperProps>(
  key={index}
  onClick={() => {
  if (onChange) {
  - onChange(index)
  + onChange(index + 1)
  }
  }}
  className={cx(`${prefixCls}__item`, {
  - [`${prefixCls}__item--active`]: current !== undefined && current >= index,
  + [`${prefixCls}__item--active`]: current !== undefined && current >= index + 1,
  [`${prefixCls}__item--first`]: index === 0,
  [`${prefixCls}__item--last`]: index === data.length - 1,
  - [`${prefixCls}__item--left-active`]: current !== undefined && current >= index,
  - [`${prefixCls}__item--right-active`]: current !== undefined && current > index,
  + [`${prefixCls}__item--left-active`]: current !== undefined && current >= index + 1,
  + [`${prefixCls}__item--right-active`]: current !== undefined && current > index + 1,
  })}
  >
  <div className={cx('item-step__wrapper')}>
  