[BUGFIX] Redirect to record after creating new root template

After clicking the button "Create template for a new site", the
user is redirected to the new template record.

Resolves: #62195
Releases: master, 6.2
Change-Id: I8d999760f09f5e81a5286a9a3790f6292bf3eb39
Reviewed-on: http://review.typo3.org/35791


Reviewed-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Reviewed-by: Stefan Froemken <froemken@gmail.com>
Tested-by: Stefan Froemken <froemken@gmail.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>