Always run the built-in copy of the GUI
Originally, the GUI was a separate program that 0launch downloaded when needed.
Later, a copy of the GUI was bundled to improve the experience for first-time
use, but updates were downloaded. In recent years, the only purpose of this has
been to add new GPG keys to the hints database.
Having the GUI as a separate program added unnecessary complexity, made it
harder to change the API and caused problems with translations.
Now that we contact a key information server to get the hints, there is no
longer any need to update the GUI on its own, so this code has been removed.
"0launch -g" now just opens the preferences dialog box.
17 files changed: