- Implement DetailsHandler for managing entry details display and edit forms.
- Create EditHandler to handle edit mode operations, including validation and saving of entry changes.
- Introduce NavigationHandler for entry movement and action operations.
- Define key bindings for various application actions in keybindings.py.
- Add TableHandler for managing the data table, including sorting and filtering of entries.
- Establish CSS styles for consistent theming across the application.
- Update tests to reflect changes in module structure and ensure proper functionality.
- Implemented SaveConfirmationModal to prompt users for saving changes when exiting edit mode.
- Integrated modal into HostsManagerApp to handle unsaved changes.
- Added methods to validate and save entry changes, restoring original values if discarded.
- Created unit tests for SaveConfirmationModal and its integration with the main application.
- Refactored entry editing logic to track changes and confirm before exiting edit mode.
