feat(vivaldi): generate a Vivaldi theme and install it on theme apply - #23

No file matched to [/home/runner/work/theme/theme/**/*requirements*.txt,/home/runner/work/theme/theme/**/*requirements*.in,/home/runner/work/theme/theme/**/*constraints*.txt,/home/runner/work/theme/theme/**/*constraints*.in,/home/runner/work/theme/theme/**/pyproject.toml,/home/runner/work/theme/theme/**/uv.lock,/home/runner/work/theme/theme/**/*.py.lock]. The cache will never get invalidated. Make sure you have checked out the target repository and configured the cache-dependency-glob input correctly.