Optimize import statements and remove unused imports across multiple files

This commit focuses on cleaning up import statements by:
- Removing unused imports
- Organizing import order
- Removing redundant imports
- Ensuring consistent import style across different modules

handlers/admin/admin_panel.py

@@ -5,7 +5,7 @@ from aiogram.types import CallbackQuery
 
 from bot import version
 from filters.admin import IsAdminFilter
-from keyboards.admin.panel_kb import build_panel_kb, AdminPanelCallback, build_management_kb
+from keyboards.admin.panel_kb import AdminPanelCallback, build_management_kb, build_panel_kb
 
 router = Router()