[TASK] Deprecate config.baseURL

The methods:
TSFE->wrapBaseUrl()
PageRenderer->setBaseUrl()

and the TypoScript setting config.baseURL are
set to be removed, as the <base> tag has its drawback
with Crawlers and with Site Handling, proper
links with "config.absRefPrefix=auto" or the global
"config.forceAbsoluteUrls = 1" (available in v12.1),
solve all use cases nowadays.

Resolves: #99170
Releases: main
Change-Id: I90131a01a731322a65bd75875e239151a2269b52
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/76768


Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Susanne Moog <look@susi.dev>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Susanne Moog <look@susi.dev>