Fix a bunch of reported bugs after deployment of new theme

Fixes the following bugs:

1. https://bugs.kde.org/show_bug.cgi?id=444699
2. https://bugs.kde.org/show_bug.cgi?id=444700

Also fixes: !1 (comment 332163)

Also fixes: https://www.reddit.com/r/kde/comments/qjmdst/the_kde_bugtracker_received_a_facelift/hiro8wp/