Migrate app ID to `org.gnome.`
As a part of incubation, we'll want to migrate the app ID (see: https://gitlab.gnome.org/Teams/Releng/AppOrganization/-/blob/main/AppLifecycle.md#coredevelopment-incubation)
I guess the open question is if we want it to be codenamed "Decibels" still, or renamed to just "Audio", e.g. org.gnome.Decibels
or org.gnome.Audio
. I lean towards the latter for simplicity-sake, but I also think it's fine to keep the codename around.
This is of particular interest to me since we plan to include Decibels in an upcoming release of Endless OS, and it would be easier to not have to deal with app ID migration after the fact.