fixes to workflow and example image

Change 'master' branch to 'main' across the project

Fix package typo

update to github workflows

Update Python build image

Fix setup.cfg issues

Enable stereo audio with PulseAudio

Restore configurations to troubleshoot

[DOC] Doc update

Fix cursor issue in KDE and implement local cursor size accessibility…

… settings (selkies-project#72)

* Prevent cursor issues in KDE desktop environments

* Improve cursor exception handling

* Cursor size accessibility

* Change command line option help