Make group names presentable to users and add builtin plugins during namespace generation.
Revamp talkeruigenerator.py to use generated group and setting names and remove as many hard-coded strings as possible
Add a --list-plugins commandline option
Mark mypy as optional
Update appimage step
Fix platform case
Remove icu check from appimage step as ComicTagger is not installed
Add appimagetool to allowed commands
Fix appimage paths
Fix package.yaml
Remove extraneous if
Fix pypi upload
Update requirements and Linux build dependencies
Update linux packages in GitHub Actions