Sort list of installed apps alphabetically
Summary: Sort the list of installed apps alphabetically, because sorting by rating count doesn't make much sense when you're looking at a list of what you've already got installed. You don't care how popular other people think it is in that case.
Test Plan:
Tested in KDE Neon. Before:
After:
[Ark being listed twice was a pre-existing bug, not introduced by this patch]
Reviewers: apol, Discover Software Store
Reviewed By: apol, Discover Software Store
Subscribers: plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D9026