v1.2.0

Enhance configuration management and version tracking

- Updated .gitignore to include .version file for version tracking.
- Modified build.spec to create a .version file during the build process for future reference.
- Improved load_config function in config.py to retrieve and update the version from the .version file or executable name, ensuring the configuration reflects the latest version information.
- Enhanced error handling in configuration loading to maintain stability during version updates.