[BUGFIX] Site module must show hidden root pages

Even if a root page is flagged as hidden it must be
shown in the site module.

Resolves: #85660
Releases: master
Change-Id: I22a0b1888511940e23cb073ef0477b1f0774b3d6
Reviewed-on: https://review.typo3.org/57696


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>