fix: Update image_helpers.py

Author: awais786

openedx/core/djangoapps/user_api/accounts/image_helpers.py

@@ -33,9 +33,11 @@ def get_profile_image_storage():
         An instance of the configured storage backend.
     """
     config = settings.PROFILE_IMAGE_BACKEND
-    storage_class_path = config.get('class', 'django.core.files.storage.FileSystemStorage')
+    storage_class_path = config.get('class') or getattr(
+        settings, 'DEFAULT_FILE_STORAGE', 'django.core.files.storage.FileSystemStorage'
+    )
     storage_class = import_string(storage_class_path)
-    return storage_class(**config.get('options'))
+    return storage_class(**config.get('options', {}))
 
 
 def _make_profile_image_name(username):