- Implemented CrowdSec configuration page with import/export capabilities.
- Added API endpoints for exporting, importing, listing, reading, and writing CrowdSec configuration files.
- Enhanced security handler to support runtime overrides for CrowdSec mode and API URL.
- Updated frontend components to include CrowdSec settings in the UI.
- Added tests for CrowdSec configuration management and security handler behavior.
- Improved user experience with toast notifications for successful operations and error handling.
- Introduced NotificationTemplate model for reusable external notification templates.
- Implemented CRUD operations for external templates in NotificationService.
- Added routes for managing external templates in the API.
- Created frontend API methods for external templates.
- Enhanced Notifications page to manage external templates with a form and list view.
- Updated layout and login pages to improve UI consistency.
- Added integration tests for proxy host management with improved error handling.
