message: show correct error message url in system field error
diff: @@ -34,7 +34,7 @@ const SystemField = ({ value, onBlur }: Props): JSX.Element => {
  />
  {!hasValidSystem && (
  <div className="msg-error" aria-live="polite">
  - {t('System must start with http://, https:// or urn:')}
  + {t('System must start with http://, https:// or urn:uuid:')}
  </div>
  )}
  </FormField>
  