New Features:
* Client side decoration by default supported on Ubuntu and Pop! sessions
* Install appdata metadata to new non-deprecated location (#792795)
Fixes:
* Manual validation fixes
* Fix gettext-domain in GSettings schema
* Do not show empty actions menu (#789750)
* Fix some shortcuts, that are added by context menu (#792859)
Translations:
* Updated translations:
- Brazilian Portuguese (pt_BR)
- Czech (cs)
- Danish (da)
- German (de)
- Hungarian (hu)
- Indonesian (id)
- Lithuanian (lt)
- Polish (pl)
- Serbian (sr, sr@latin)
- Spanish (es)
- Swedish (sv)
* Updated Slovenian manual (sl)
* Updated Spanish manual (es)
