Version 2.23.1 - Fix Swimlanes, Boxes, and Circles Not Visible

Changes

🐛 Bug Fixes

• Fix CSS attribute rules for subject properties @amolenaar (#2997)
• Fix Activity Swimlanes aren't visible @amolenaar (#2996)
• Remove both owner and memberNamespace in model browser @amolenaar (#2989)

🧰 Maintenance

• Remove use of pipx in CI @danyeaw (#3007)

🌍 Translation

• Update translations for Gaphor @weblate (#3011)
• Update translations for Gaphor @weblate (#2998)
• Update translation for docs.gaphor.org @weblate (#2986)
• Update translations for Gaphor @weblate (#2985)

Thanks again to @amolenaar, @danyeaw, and @milotype! 🎉