message: feat: Add `hidden` attribute to `Hidden`
diff: @@ -128,6 +128,7 @@ class Component extends React.Component<HiddenProps, HiddenState> {
  return (
  <Box
  aria-hidden={!visible}
  + hidden={!visible && !hasTransition(this.props)}
  {...this.props}
  {...this.state}
  onTransitionEnd={callAll(this.handleTransitionEnd, onTransitionEnd)}
  