Fix endless scroll when all apps are added

Merged username-removed-124398 requested to merge NicoAlt/repomaker:fix-endless-scroll into master

Before, all app cards had only the class rm-app-card--no-hover when their app was already added to the repo. This caused endless scroll to fail when all apps were added because it was looking for app cards with the class rm-app-card.

Now, all app cards have the class rm-app-card all the time. When an app card should not change on hover, the class rm-app-card--no-hover is added so both rm-app-card and rm-app-card--no-hover exist.