Komet 1.3

• Update Komet's App Icon (#29) (Yuri Izmer)
• Make the commit window join all Stage Manager groups (ce47f4c) (Yuri Izmer)
• Add Theme option to Settings in addition to the existing View menu (Zorg) (a4e4d8d)
• Update title of Settings window to match toolbar item label (6af6f4b) (Zorg)
• Add option to allow beta updates in Advanced settings which was previously a hidden user default ZGEnableBetaUpdates (Zorg) (7617ced)
• Add progress indicator when manually checking for updates (f068a37) (Zorg)
• Add version history button when no new update is found (ec079dc) (Zorg)

This update includes a brand new App Icon and Stage Manager fixes by @yuraiz