Add autocomplete functionality for parks: implement BaseAutocomplete class and integrate with forms

parks/querysets.py

@@ -3,9 +3,17 @@ from .models import Park
 
 def get_base_park_queryset() -> QuerySet[Park]:
     """Get base queryset with all needed annotations and prefetches"""
+    from django.contrib.contenttypes.models import ContentType
+
+    park_type = ContentType.objects.get_for_model(Park)
     return (
         Park.objects.select_related('owner')
-        .prefetch_related('location', 'photos', 'rides')
+        .prefetch_related(
+            'photos',
+            'rides',
+            'location',
+            'location__content_type'
+        )
         .annotate(
             current_ride_count=Count('rides', distinct=True),
             current_coaster_count=Count('rides', filter=Q(rides__category="RC"), distinct=True)