docs: public static Link getHelpLink(final VaadinMessageSource i18n, final String uri) {
  
          final Link link = new Link("", new ExternalResource(uri));
          link.setTargetName("_blank");
          link.setIcon(FontAwesome.QUESTION_CIRCLE);
          link.setDescription(i18n.getMessage("tooltip.documentation.link"));
          return link;
  
      }