refactor(exceptions): update import path for Case model

- Changed the import statement for Case from tux.database.models.moderation to tux.database.models for improved clarity and consistency.
- Enhanced the organization of import paths in the exceptions module.

Author: kzndotsh

src/tux/shared/config/__init__.py

@@ -4,3 +4,7 @@
 This module contains configuration classes, environment variable handling,
 and settings management that can be shared across all applications.
 """
+
+from .env import configure_environment, get_bot_token, get_database_url
+
+__all__ = ["configure_environment", "get_bot_token", "get_database_url"]

src/tux/shared/exceptions.py

@@ -1,6 +1,6 @@
 from typing import TypeVar
 
-from tux.database.models.moderation import Case
+from tux.database.models import Case
 
 
 class PermissionLevelError(Exception):