- Switch `.template-preview-variables` to grid layout for better responsiveness.
- Adjust form label font size and spacing for consistency.
- Enhance styles of `.form-control-sm` for improved usability.
- Consolidate unit of work implementation with NotificationUnitOfWork.
- Refactor repositories to use NotificationBaseRepository for consistency.
- Simplify request handlers by removing IUnitOfWork dependency.
- Update related tests and service registration.