fix: add deterministic ordering by id to review recap views

Proposals with the same score were appearing in non-deterministic order
in the review system recap views. Added secondary sort by `id` to both
the grants recap view and proposals recap view to ensure consistent
ordering.

Fixes #4535

Co-authored-by: Marco Acierno <marcoacierno@users.noreply.github.com>

Author: github-actions[bot]

backend/reviews/admin.py

@@ -468,7 +468,7 @@ def _review_grants_recap_view(self, request, review_session):
                     ).values_list("category_id", flat=True)
                 ),
             )
-            .order_by(F("score").desc(nulls_last=True))
+            .order_by(F("score").desc(nulls_last=True), "id")
             .prefetch_related(
                 Prefetch(
                     "userreview_set",
@@ -567,7 +567,7 @@ def _review_proposals_recap_view(self, request, review_session):
                     .values("score")
                 )
             )
-            .order_by(F("score").desc(nulls_last=True))
+            .order_by(F("score").desc(nulls_last=True), "id")
             .prefetch_related(
                 Prefetch(
                     "userreview_set",