Improve appstream metadata for Tweak Tool
@jbicha
Submitted by Jeremy Bicha Link to original bug (#783537)
Description
I think Tweak Tool's appstream metadata could be improved.
https://www.freedesktop.org/software/appstream/docs/chap-Quickstart.html#sect-Quickstart-DesktopApps
https://www.freedesktop.org/software/appstream/docs/chap-Metadata.html#tag-releases
Other GNOME apps use kudos so look into adding those too.