Streamlit-utils

Fixed

- Refactored the `release` workflow that was not working properly.

Changed

- Removed the `close` trigger of the `CI` workflow to prevent duplication.
- Changed the paths of the `CI` workflow to only trigger when necessary.
- Changed package classifiers (added several and removed the old ones).
- Added two new URLs to the project metadata.

Added

- The `session_state` decorator for easy interaction with Streamlit apps state.
- Initial release of the package.