message: Extent tracking of "on this page" clicks
diff: use:renderPageToc
  id="toc-wrapper"
  class="hidden self-start flex-none w-1/4 pl-8 sticky top-24 max-h-[calc(100vh-6rem)] pb-10 overflow-x-hidden overflow-y-auto {clazz}"
  + data-analytics={`{"position":"main","context":"on_this_page"}`}
  >
  <p><strong>On this page</strong></p>
  </div>
  