Make project member filter sticky

Release notes

Problem to solve

The current implementation (%14.3) of the Project Members page on SaaS has usability issues. If I filter by direct members (very neccessary on SaaS) and then I delete a member, the page refreshes with my filter removed and I am again shown a large corpus of users. Over the course of deleting a dozen members the user is required to reset the filter at least 12 times.

Proposal

Make the member filter sticky enough to survive page refreshes.