Allow building without X11 support

Signed-off-by: AnErrupTion <anerruption@disroot.org>

res/lang/en.ini

@@ -45,6 +45,7 @@ insert = insert
 login = login
 logout = logged out
 normal = normal
+no_x11_support = x11 support disabled at compile-time
 numlock = numlock
 password = password
 restart = reboot

res/lang/fr.ini

@@ -45,6 +45,7 @@ insert = insertion
 login = identifiant
 logout = déconnecté
 normal = normal
+no_x11_support = support pour x11 désactivé lors de la compilation
 numlock = verr.num
 password = mot de passe
 restart = redémarrer