def link_to_avatar
      helpers.link_to(image_tag_avatar(title: model.display_name),
                      helpers.person_activities_path(person_id: model.id))
    end
def link_to_avatar
      helpers.link_to(image_tag_avatar(title: model.display_name),
                      helpers.person_activities_path(person_id: model.id))
    end
Creates a link to the persons profile with their avatar as the content

 @return [String] An HTML a tag