tails-greeter: localize keyboard layout names
Type of work:
Seems like all the UI's l10n is correctly updated on language change, but the keyboard layout widget is constantly displayed using the locale the window was loaded with.
- in ubiquity, the
/usr/share/locale/*/LC_MESSAGES/xkeyboard-config.moto translate the keyboard layout names, from list of keyboard layouts gathered using the d-i's console-setup