Add raw id fields for game showcase in server/game_dev/admin.py

Add raw id fields for game showcase in server/game_dev/admin.py

Co-authored-by: James Lee <82937700+SafetyInObscurity@users.noreply.github.com>

Author: bilibilistack

server/game_dev/admin.py

@@ -16,7 +16,7 @@ class GameContributorAdmin(admin.ModelAdmin):
 
 
 class GameShowcaseAdmin(admin.ModelAdmin):
-    pass
+    raw_id_fields = ["game"]
 
 
 class GamesAdmin(admin.ModelAdmin):