- Updated header title to "/etc/hosts Manager" and modified subtitle format.
- Implemented a dedicated overlay status bar for error messages, ensuring no layout shifts.
- Refactored entry details display to use DataTable with labeled rows for improved consistency.
- Added CSS styles for the new status bar and DataTable.
- Created tests for status bar visibility and DataTable functionality, ensuring all tests pass.
- 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.
