fix(moonraker.sh): bug in instance confirmation

Signed-off-by: Dominik Willner th33xitus@gmail.com

scripts/moonraker.sh

@@ -80,6 +80,7 @@ function moonraker_setup_dialog(){
       error_msg "Invalid Input!\n"
     else
       echo
+      while true; do
         read -p "${cyan}###### Install ${count} instance(s)? (Y/n):${default} " yn
         case "${yn}" in
           Y|y|Yes|yes|"")
@@ -92,9 +93,10 @@ function moonraker_setup_dialog(){
             error_msg "Exiting Moonraker setup ...\n"
             break;;
           *)
-          print_error "Invalid command!"
+            error_msg "Invalid Input!\n"
             ;;
         esac
+      done
     fi
   done
 }