message: open menu if not open yet
diff: @@ -40,7 +40,7 @@ function useKeyboardNav(details, thingRef) {
  break
  case 'ArrowDown':
  {
  - if (isSummaryFocused && isOpen) {
  + if (isSummaryFocused && !isOpen) {
  openDetails(details)
  }
  const target = focusItem(true)
  @@ -50,7 +50,7 @@ function useKeyboardNav(details, thingRef) {
  break
  case 'ArrowUp':
  {
  - if (isSummaryFocused && isOpen) {
  + if (isSummaryFocused && !isOpen) {
  openDetails()
  }
  const target = focusItem(false)
  