Implement configuration to hide page content when "drilling down"

[ScopeyNZ]

#150 adds a detail (or "drill-down") view for records on the front end. When a page has content above the registry table that still shows in this detail view. My suggestion is that we have configuration (probably on the PHP side for simplicity) to hide this content when viewing detail of pages.

[robbieaverill]

I'm not sure how you'll do that when the detail view is triggered by a row click and React router. You can do it easily when the URL is loaded directly though. Maybe some entwine logic to determine if the detail view is shown and if so then hide the content area?

Note: we shouldn't hide the page title