fix .desktop file

files/ubl-settings-system.desktop

@@ -229,10 +229,10 @@ Keywords[cs]=ubl-settings-system;Systémove;
 Keywords[ca]=ubl-settings-system;Sistema;
 Keywords[bn_IN]=ubl-settings-system;System;
 Keywords[bg]=ubl-settings-system;Система;
-Keywords[ast]=Paramètres du Système
+Keywords[ast]=ubl-settings-system;Sistema
-Keywords[as]=System সেটিংস
+Keywords[as]=ubl-settings-system;System
 Keywords[ar]=تكوين إعدادات نظام التشغيل
-Keywords[af]=System instellingse
+Keywords[af]=ubl-settings-system;System
 Type=Application
 Exec=ubl-settings-system
 Icon=com.ublinux.ubl-settings-system