Refactor imports and type hints across multiple modules

- Removed unnecessary conditional imports for Django models.
- Updated type hints from 'Model' to 'models.Model' for better clarity and consistency.
- Added missing imports for 'models' in various files to ensure proper type checking.
- Cleaned up import statements by consolidating related imports.
- Enhanced readability and maintainability of the codebase by standardizing import styles.

server/src/uds/REST/methods/services_pool_groups.py

@@ -35,6 +35,7 @@ import logging
 import typing
 
 from django.utils.translation import gettext_lazy as _
+from django.db.models import Model
 
 from uds.core import types
 from uds.core.util import ensure, ui as ui_utils
@@ -44,9 +45,6 @@ from uds.REST.model import ModelHandler
 
 logger = logging.getLogger(__name__)
 
-if typing.TYPE_CHECKING:
-    from django.db.models import Model
-
 
 # Enclosed methods under /item path