subject page v2

Also accessible for normal users, but they can't edit, import or create subjects. We could display some stats, like the number of consultations, the number of active requests, etc...
Add a button to each subject to subscribe/unsubscribe to that subject
Also add a searchbar

Start at the subject page entry point and inspect how subjects are currently displayed for users. No file or test is named, so first locate that page and its existing subject data flow. Done means normal users can view subject statistics, subscribe or unsubscribe, and search subjects without edit, import, or create controls.

Written by the indexing model from the issue text.