[TASK] Use constructor property promotion in ext:felogin

With this change constructor property promotion is used
in ext:felogin where possible.

Also 2 superfluous overrides of EventDispatcherInterface have
been removed, since the property is already inherited through
ActionController.

Resolves: #97805
Releases: main
Change-Id: I48ac97fe86dc068db023e247039ab38669c868e2
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/74974


Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: Stefan Bürk <stefan@buerk.tech>