When listing articles for a Topic, the list was always labeled "Article".
If "articlesLabel" is set on [[Languages.<languageCode>]] section of site's config file,
it is used as Header for the listing of articles of the topic.
If it is not set, "Articles" is used.
E.g. "Contact" links to /contact by default or when defaultLanguageContent=en.
If the user selects any other language (e.g Es), the link points to "/es/contact".
The Call to Action button also points to the localized version of the Contact page.
