[TASK] Remove alerts of locked records

Use tooltips instead of ancient JavaScript alerts for locked
records.

Resolves: #79422
Releases: master
Change-Id: Ia9911f8eaad1c55c2af14e366af13e0e9b7b21df
Reviewed-on: https://review.typo3.org/51387


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Mona Muzaffar <mona.muzaffar@gmx.de>
Reviewed-by: Mona Muzaffar <mona.muzaffar@gmx.de>
Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: Andreas Fernandez <typo3@scripting-base.de>