[TASK] Show correct module action name in bookmark list

This patch includes the changes for the two modules "Backend user"
and "Scheduler" using the new displayName property of the ShortcutButton.

Resolves: #70824
Releases: master
Change-Id: Iad9169030429d649aa9f9b8cec910529b3140884
Reviewed-on: https://review.typo3.org/44144


Reviewed-by: Daniel Goerz <ervaude@gmail.com>
Tested-by: Daniel Goerz <ervaude@gmail.com>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>