[BUGFIX] Click in TypoScript object browser is broken

This patch scroll the page down, so the just opened subtree is visible again.

Resolves: #71446
Resolves: #71397
Releases: master
Change-Id: I54012a974e4361b4c8428252f4319c259dd2fc02
Reviewed-on: https://review.typo3.org/44645


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>