Function onToggle

components/sidebar/RestCollapsibleSection.tsx:35–42

(e: SyntheticEvent)

  const [visibleAnchor, setVisibleAnchor] = useState('')

  const onToggle = (e: SyntheticEvent) => {
    const newIsOpen = (e.target as HTMLDetailsElement).open
    setIsOpen(newIsOpen)
    sendEvent({
      type: EventType.navigate,
      navigate_label: `details ${newIsOpen ? 'open' : 'close'}: ${title}`,
    })
  }

  const miniTocItems =
    router.query.productId === 'rest' ||