R1:ff7215f3d631

Fix a fatal on the application list

Summary:
Fixes T7816. This just punts adding proper cursor-based paging to Applications for now, since they don't have a handy order.

If we get to 101, we can either fix this properly or change the SearchEngine to return 200 results.

(Previously, we generated a cursor only if we absolutely needed to, so this code wasn't called. We generate cursors in some cases where we may not need them now, but the code is simpler this way.)

Test Plan: `/applications/` no longer…