[TASK] Generate absolute FAL URLs in frontend

Similar to #95027 FAL public URLs are now
automatically prefixed with absRefPrefix,
making it much easier for developers to deal
with FAL URLs, as these URLs are always "complete"
/ path absolute, after retrieving it from getPublicUrl()

With that, TYPO3 code can be simplified as well and
separate appending of absRefPrefix for FAL resources
is now removed.

Releases: master
Resolves: #95027
Related: #95027
Change-Id: I614f0ad8ecb9c168d3006a812dbfe9fba6b7de51
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/70839


Tested-by: core-ci <typo3@b13.com>
Tested-by: Jochen <rothjochen@gmail.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Helmut Hummel <typo3@helhum.io>
Reviewed-by: Jochen <rothjochen@gmail.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Helmut Hummel <typo3@helhum.io>