Going to e.g. the workboard of an archived project, there is no indication when the project has been archived. This can lead to confusion why a workboard is completely empty.
Thus render an archived project as strike-through in the navigation bread crumbs.

Closes T15890

• Go to the {Profile, Workboard, Reports, Members, Subprojects, Reports} pages of an active and an archived project and look at the navigation crumbs bar below Phorge's global top bar.
• Create an active subproject and active milestone of an archived project (and vice versa) and look at the navigation crumbs.