Add translucent background attribute to desktop icon popup menu
Summary:
This fixes the issue when menu transparency is enabled in the Breeze widget settings the context menu of desktop icons have no transparency.
Multiple users (including me) have reported that D14174 did not solve the problem.
BUG: 395262
Test Plan:
Before:
After:
Reviewers: hein, davidedmundson, Plasma
Reviewed By: davidedmundson, Plasma
Subscribers: ngraham, plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D15435