Sliding Sync: improve sort order, show subspace rooms, better tombstoned room handling (#9484)

* Add support for include_old_rooms and by_notification_level

* Include subspaces when apply spaces filter

* Remove stray is_tombstoned

* tests: add SlidingRoomListStore jest tests; update proxy version in cypress

* Add additional tests

* Additional tests

* Linting

* Update test/stores/room-list/SlidingRoomListStore-test.ts

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>

src/hooks/useSlidingSyncRoomSearch.ts

@@ -52,7 +52,6 @@ export const useSlidingSyncRoomSearch = () => {
                 ranges: [[0, limit]],
                 filters: {
                     room_name_like: term,
-                    is_tombstoned: false,
                 },
             });
             const rooms = [];