More game overview optimizations

games/templates/view_game.html

@@ -57,7 +57,7 @@
         </ul>
         <h1 class="text-3xl mt-4 mb-1 flex gap-2 items-center">
             Sessions
-            <span class="dark:text-slate-500">({{ sessions.count }})</span>
+            <span class="dark:text-slate-500">({{ session_count }})</span>
             {% url 'start_game_session' game.id as add_session_link %}
             {% include 'components/button.html' with title="Start new session" text="New" link=add_session_link %}
             and Notes <span class="dark:text-slate-500">({{ sessions_with_notes_count }})</span>

games/views.py

@@ -170,7 +170,9 @@ def view_game(request, game_id=None):
         .order_by("year_released")
     )
 
-    sessions = Session.objects.filter(purchase__edition__game=game)
+    sessions = Session.objects.prefetch_related("device").filter(
+        purchase__edition__game=game
+    )
     session_count = sessions.count()
 
     playrange_start = sessions.earliest().timestamp_start.strftime("%b %Y")