[BUGFIX] Fix wrong type in "rootLevel" option

[BUGFIX] Fix wrong type in "rootLevel" option

Several system tables used a wrong type for ctrl option "rootLevel"
in TCA. By definition in TCAref "rootLevel" is from type integer.

Resolves: #83990
Branches: master
Change-Id: Ic49464ce428a1d9a928f90231c77e0d445789ee7
Reviewed-on: https://review.typo3.org/55852
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>