[BUGFIX] Use proper implementation class for PagePositionMap

The PagePositionMap uses the ElementBrowserPageTreeView
which is a specific implementation for the Element Browser (now unused).

However, the PageTreeView is the correct implementation,
as this is also used in all subclasses of PagePositionMap,
handling links properly for moving records or creating new records / pages.

Resolves: #94006
Releases: master
Change-Id: I1b7de4827732afb201c8bb0ee0a16112df27948e
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/68900


Tested-by: core-ci <typo3@b13.com>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>
Tested-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>