This suddenly started failing. I guess there was a deprecated
`assertEquals` in older Python libraries, but with the latest version in
Ubuntu 24.04 Noble this disappeared. Anyway, with this change we use
the same assert method as in the other test files.
This change improves the way we detect if we're running a Gnome based
UI that needs it's keyboards installed under
`org.gnome.desktop.input-sources`. We use the environment variable
`XDG_CURRENT_DESKTOP` and check if it contains the word `gnome`.
Additionally this change renames `is_gnome_shell()` to
`is_gnome_desktop()`.
Fixes#11225.
- during installation add to the list of custom keyboards if necessary
- during uninstallation remove from the list of custom keyboards
- if list of custom keyboards has invalid values, remove those before
saving the list
Closes#8598.
After this change uninstalling a keyboard will remove all installed
language/keyboard combinations for that particular keyboard.
Previously we only uninstalled for the first language listed in the
keyboard.
This change refactors and cleans uninstall:
- rename methods to make it clear which ones are private/protected
- extract common code
- improve error reporting
