Contextual description for argument input

@Carlitus - This is fantastic! Is it possible to get a re-roll of your patch for 8.x-2.0?

Thanks @sassafrass

We have to rethink how to made this more maintainable and see how it can be done so that the module maintainers see it as something that gives value.

@sassafrass I recomend you using this module: https://www.drupal.org/project/viewsreference_filter →

It's a lot better, because the webmaster can use the exposed filters (no contextual) to define the filters of the view, and there is an option to hide this filters.