[DOCS] Correct changelog about removing TMENU.collapse

Resolves: #98946
Related: #96517
Releases: main
Change-Id: Ibf44b8dad7a1cc79796a5791f194fc7792e9a355
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/76321


Tested-by: core-ci <typo3@b13.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>