- Bump target Python version to 3.12 in `pyproject.toml`.
- Update Flask to version 3.1.2 in `requirements.txt`.
- Remove deprecated dark mode configuration from the application.
- Adjust logo rendering in templates to remove dark mode dependency.
- Update GitHub Actions workflows to support the 'updates' branch for builds.
- Increment version to 1.1.3 with an optional update-testing tag.
* Sync setup.cfg with requirements.txt
* Include tests in PyPI tarballs
And exclude them from setuptools
* Set version number only once
Switch to PEP517 standard (pyproject.toml) for builds
