simple startup update check for KIAUH

scripts/ui.sh

@@ -154,4 +154,11 @@ switch_ui(){
   echo -e "|  4) [--> moonraker]                                   | "
   echo -e "|  5) [--> dev-moonraker]                               | "
   quit_footer
+}
+
+kiauh_update_msg(){
+  top_border
+  echo -e "|  ${yellow}There is a newer version of this script available!${default}   | "
+  echo -e "|  ${yellow}Type 'update' if you want to update KIAUH now.${default}       | "
+  bottom_border
 }