message: feat(Stepper): improve number keyboard
diff: @@ -293,6 +293,10 @@ export default createComponent({
  type="number"
  role="spinbutton"
  class={bem('input')}
  + // set keyboard in mordern browers
  + inputmode={this.integer ? 'numeric' : 'decimal'}
  + // set keyboard in iOS 8 ~ 12
  + pattern={this.integer ? '\\d*' : null}
  value={this.currentValue}
  style={this.inputStyle}
  disabled={this.disabled}
  