I should be able to pin a specific Space as a mobile app

(User Story, Investigate , Priority: Medium, Test Status: No automated tests yet , Reported By Justin du Coeur, )
Mobile, User Interface
Summary: That is, rather than pinning Querki as a whole, it's usually more useful to pin a few Spaces that I use frequently.
Depends Upon:
Need to investigate whether this is possible, but in principle it makes sense -- pick something from the menu, and it delivers a version of the page with a WebApp manifest specific to this page. This probably shouldn't be automatic, though, or it's going to be irritating. (check this)