Re-add category display to app delegates
Summary:
A year ago, I removed this in 0911fbcd561c with no review. :/ Sorry about that. In the
past year, Discover's UI has come a long way, and I think we can re-add the category
display now without causing the app delegates to become super cluttered.
The category name is suppressed if it would be identical to the page's title.
Test Plan:
Categories in search lists:
Categories on the featured page:
Categories in browse lists, featuring suppression-when-equal-to-the-page-title:
Reviewers: VDG, Discover Software Store, apol
Reviewed By: Discover Software Store, apol
Subscribers: plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D24832