aboutDialog: Add @Scrambled777 to credits

Author: tchx84

src/widgets/aboutDialog.ui

@@ -47,7 +47,8 @@ Nikolai Eugen Sandvik
 Aleksandr Melman
 Lucas Serrano
 Benedek Dévényi
-Athanasios Karachalios</property>
+Athanasios Karachalios
+Scrambled777</property>
     <property name="artists">Tobias Bernard
 J.P. MacDonald</property>
     <property name="documenters">TheEvilSkeleton</property>