GitLab

* The user process list is now a custom page -> it has a new id. We only
want to propose the new id in the profile editor portal menu proposal.
* Ensure that the engine is started before to retrieve portal default
pages (broke with the work done to start the engine in background when
required apparently)

Closes BS-19042

Closes BS-19041

Closes BS-19039

Closes BS-19033

and random test failure

* Ensure that the engine is started at the beginning of the edition of
the rest api permission mapping, else an error occurred when we try to
load the current permission mapping from the database

Closes BS-18946