[BUGFIX] Add absolute URL generation to f:widget.link

This adds the missing ability to generate absolute URLs
with the f:widget.link ViewHelper, which is possible
with other linking ViewHelpers as well.

Resolves: #91994
Releases: master, 10.4
Change-Id: I6f7142849cf13c97376bccaaa80a0e9f3aa2123a
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/65316


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Jörg Bösche <typo3@joergboesche.de>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Jörg Bösche <typo3@joergboesche.de>
Reviewed-by: Benni Mack <benni@typo3.org>