Replace tkinter UI with NiceGUI and add GitHub Actions workflows

[BKLronin]

This PR replaces the tkinter UI with a modern web-based UI using NiceGUI. It also adds GitHub Actions workflows to automatically build macOS and Windows binaries when a new tag is pushed.

Changes

UI Changes

• Replaced tkinter with NiceGUI for a modern web-based interface
• Maintained all existing functionality
• Improved layout and styling
• Added responsive design elements

Build System

• Added GitHub Actions workflows for automated builds
• Created separate workflows for macOS and Windows
• Added combined workflow that builds both platforms
• Updated README with instructions for creating releases

Development Tools

• Added compilation scripts for local development
• Created requirements.txt for easier dependency management
• Added setup.py for packaging

To create a new release after merging this PR, simply push a new tag (e.g., git tag v1.0.0 and git push origin v1.0.0), and GitHub Actions will automatically build the binaries and create a release.

@BKLronin can click here to continue refining the PR