Reorganize Palm's release notes to have a feature based release section, should match how it was done for Quince
Add Palm posts from https://openedx.org/?s=palm as the "feature based release notes", excepting the Verified Credentials post (it's unclear if this was in Palm, will add to Palm or Quince later on)
Do not break existing /palm.html URL for any permalinks - /palm.html should remain unchanged
Acceptance Criteria
https://docsopenedxorg--532.org.readthedocs.build/en/532/community/release_notes/palm-landing.html