[TASK] Replace SiteMatcher with SiteFinder where applicable

SiteMatcher is a container around SiteFinder now as PseudoSite
handling was removed, so SiteFinder can be used directly.

Resolves: #88568
Releases: master
Change-Id: Ib0f5a42351ed5c11c25458b74074b80f5c574bbd
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/61043


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: Benjamin Franzke <bfr@qbus.de>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Benjamin Franzke <bfr@qbus.de>