[BUGFIX] Show SVG actions in Element Browser trees

Due to the change of scalable SVG icons the tree actions
for selecting actions in the Page Selector / File Selector
were not rendered again.

This change fixes the issue by properly using a SVG
inside another SVG again, just like with icons
of the actual tree.

Resolves: #94545
Releases: master
Change-Id: I7bfae2e422adce6fd07eed46a26e8ab9767f12a6
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/69814


Tested-by: core-ci <typo3@b13.com>
Tested-by: Jochen <rothjochen@gmail.com>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Jochen <rothjochen@gmail.com>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Benni Mack <benni@typo3.org>