- 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.
- Added PermissionManager class for managing sudo permissions.
- Introduced HostsManager class for high-level operations on hosts file.
- Implemented methods for entering/exiting edit mode, toggling entries, moving entries, updating entries, saving the hosts file, and restoring backups.
- Integrated permission validation and backup creation during edit operations.
- Enhanced main application to support edit mode and associated actions.
- Added tests for PermissionManager and HostsManager to ensure functionality and error handling.
