[TASK] Remove jQuery from `@typo3/backend/page-actions`

This patch removes jQuery from the `@typo3/backend/page-actions` module
used in the Page module to hide "hidden" content elements completely.

Since jQuery's sliding was used which has no native API,
`requestAnimationFrame()` is used to achieve the same behavior.

To have a fluent CSS-based animation, positioning of `.t3-page-ce` needs
to be fixed, making futher adjustments necessary.

Additionally, an unused class is removed.

Resolves: #99716
Releases: main
Change-Id: If520858db7dfe8c50d8cad477d169a1d8e896ce8
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77510


Tested-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>