fix(graphql): Resolve N+1 query for StudyLevel translations

Author: sentry[bot]

occurrences/schema.py

@@ -298,7 +298,7 @@ class Meta:
     @classmethod
     def get_queryset(cls, queryset, info):
         lang = get_language()
-        return queryset.language(lang)
+        return queryset.language(lang).prefetch_related("translations")
 
 
 class ExternalPlace(graphene.ObjectType):