[BUGFIX] use included TSconfig files in frontend

The files included in the field tsconfig_includes are now included
when collecting the page TSconfig in the TypoScriptFrontendController.

Resolves: #82662
Releases: master, 8.7
Change-Id: I226f942045647a3b7c4130b9e5d39b6d982efd1b
Reviewed-on: https://review.typo3.org/54276


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>