[BUGFIX] Display tree hierarchy in sites module

The page hierarchy is now properly displayed in the sites module

Resolves: #84664
Releases: master
Change-Id: Ib390c0322042e6ddf433576df42219eeb3377525
Reviewed-on: https://review.typo3.org/56605


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>