[BUGFIX] Fix wrong indentation of PageTree in MoveElements

Resolves: #78687
Releases: master, 7.6
Change-Id: Ibe5efa5b81e839f7bc608ca4adffe1aa2d2a9727
Reviewed-on: https://review.typo3.org/50648


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Gianluigi Martino <gmartino27@gmail.com>
Tested-by: Gianluigi Martino <gmartino27@gmail.com>
Reviewed-by: Jan Helke <typo3@helke.de>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>