refactor(database): update import paths for models

- Changed import statements for various models (AFK, Case, GuildConfig, Levels, Reminder, Snippet, Starboard, StarboardMessage) from specific submodules to a unified import from tux.database.models for improved clarity and consistency across the database controllers.
- Enhanced organization of import paths in the database controller files.

Author: kzndotsh

src/tux/database/controllers/afk.py

@@ -4,7 +4,7 @@
 from typing import Any
 
 from tux.database.controllers.base import BaseController
-from tux.database.models.social import AFK
+from tux.database.models import AFK
 from tux.database.service import DatabaseService