[TASK] EM: Modules deserve headlines

Users should know which context is active.
Display context as module headline.

Change-Id: I7e572c019f3d6a290ee699a695c98a5d4ccc6e4e
Fixes: #46934
Releases: 6.0, 6.1
Reviewed-on: https://review.typo3.org/19580
Reviewed-by: Sascha Egerer
Tested-by: Sascha Egerer
Reviewed-by: Alexander Opitz
Tested-by: Alexander Opitz
Reviewed-by: Philipp Gampe
Tested-by: Philipp Gampe
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn