message: fix: vertical divider width fix
diff: import { mode } from '../tools';
  function baseStyle(props: Record<string, any>) {
  + const { orientation } = props;
  return {
  - borderTopWidth: 1,
  + borderTopWidth: orientation === 'vertical' ? 0 : 1,
  + borderLeftWidth: orientation === 'vertical' ? 1 : 0,
  bg: mode('muted.600', 'muted.200')(props),
  };
  }
  