SEO and Open Graphs
All pages inheriting from ContentPageBase will have SEO fields and Open Graph-tags enabled.
Edit the information on the SEO-tab, as the defaults are only to render title, og:title, og:type and og:url.
To change the rendering or number of fields, edit Metadata.cshtml and SeoSettingsBlock respectively.
OG:Type
og:type defaults to "article", which is appropriate for most pages. The type is chosen using a dropdown using the values in the enumerable OpenGraphType.
To add additional types, add them to the enum and add translations for all languages in lang/translations.[lang].xml under /Enums/OpenGraphType/
