use the new GlobalDrawer header property
Summary:
Depends on D25425
BUG: 389533
FIXED-IN: 5.18
Test Plan:
Reviewers: Discover Software Store, ngraham, apol
Reviewed By: Discover Software Store, ngraham, apol
Subscribers: apol, ngraham, plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D25426