Mount Operations Fix:
- Add graceful error handling for mount operations in configure_target_system()
- Handle 'already mounted' errors common in live systems
- Continue installation despite mount failures instead of crashing
- Ensure mount point directories exist before mounting
- Update unmount operations with similar error handling

Progress Tracking Enhancement:
- Re-estimate copy progress every 10 seconds based on actual transfer rate
- Display real-time speed, ETA, and remaining data in progress text area
- Use dynamic rate calculation instead of static time-based estimation
- Better accuracy for long-running copy operations

Build Process Optimization:
- Move AutoInstaller GUI build to early stage of ISO build process
- Ensure binary is included in the live system within the ISO
- Remove duplicate build section from end of script
- Add confirmation messages that binary is included in ISO

Code Quality Improvements:
- Fix AttributeError: 'network_label' -> 'interface_label' in set_defaults()
- Remove incorrect PyInstaller hidden imports (QShortcut, QKeySequence)
- Update documentation and README files with recent fixes
- Better error handling throughout the installation process