[TASK] Migrate SvgTree items to TypeScript

This change migrates all left-over components of
* SvgTree
* SelectTree (a.k.a. CategoryTree)
* and PageTree

to TypeScript adding types in various places
to make the code less error-prone.

Resolves: #87678
Resolves: #85400
Releases: master
Change-Id: Ibb4024d365857c44018a7a201c1cf75baa48179a
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/67662


Tested-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: core-ci <typo3@b13.com>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>