EZP-23366 - Correct active view service value not set correctly in the PlatformUI app

https://jira.ez.no/browse/EZP-23366

Corrected the value of active view service when the app is loading a new view and its service.
if the current route does not have a service, we should probably set the attribute to undefined.
This behavior should be tested and you should also add a regression test as well.