[BUGFIX] Show allowed HTTP methods for backend routes

Since #93455 it's possible to restrict backend routes to
a limited set of HTTP methods. This route property is now
also displayed in the corresponding "Backend Routes"
configuration module provider.

Resolves: #93623
Releases: master
Change-Id: Ibc2bff74894a8d5f0be571d290706909dd98c009
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/68163


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>