[Docs]: Clarify scroll bahavior and traversing DOM (#72071)
This PR clarifies scroll behavior when components are added to a page
that do not contain visible elements. This PR adds a note to the `Link`
docs explaining how Next.js traverses the DOM and bypasses certain
components looking for a scrollable element.
Fixes:
https://linear.app/vercel/issue/DOC-3391/add-guidance-on-metadata-placement-and-page-scroll-with-link
---------
Co-authored-by: JJ Kasper <jj@jjsweb.site>
