[TASK] Use AJAX API for slug update revert handling

This patch makes use of the AJAX API in the slug update revert handling.
This also fixes a bug where the notification box disappears directly
once a revert action has been clicked.

Resolves: #90173
Releases: master
Change-Id: I731ad2ac2ea6b649a1a9ab4dfcef2022c6ca7e19
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63015


Reviewed-by: Susanne Moog <look@susi.dev>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Susanne Moog <look@susi.dev>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>