Changes
- Added: support for Ubuntu 21.10 + higher
- Added: gnomeconf2gdm also applies sound settings
- Added: if gdm-tools was installed through AUR , theme & background settings are re-applied when gnome-shell gets updated
- Added: license information
- Improved: information output on terminal
- Fixed: some icons were missing after setting a third-party theme
- Fixed: mistakes in 'set-gdm-theme' manpage
- Fixed: incorrect command completion in fish shell