[BUGFIX] Remove caches for page title and meta tag

By concept for frontend rendering the page title and meta tags
are not meant to be stored in page cache in order to allow
non cachable plugins to modify those.

Currently both page title and meta tags are stored
in separate cache entries, which violates the concept above
and unnecessarily tightly couples those code parts to the
TypoScriptFrontendController and internal logic of it.

This patch removes these caches.

In order to properly handle the uncached rendering state,
we make sure the meta tag registry is properly
serialized with all managers.

Resolves: #88179
Releases: master, 9.5
Change-Id: If5200398bf9ab9db09ab97403c976d82cb33d01d
Signed-off-by: Frank Naegler <frank.naegler@typo3.org>
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/60520


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Helmut Hummel <typo3@helhum.io>
Tested-by: Richard Haeser <richard@maxserv.com>
Reviewed-by: Helmut Hummel <typo3@helhum.io>
Reviewed-by: Richard Haeser <richard@maxserv.com>