Add a new preferences-desktop-theme-global icon
Summary:
Add a new preferences-desktop-theme-global icon for the Look and Feel / Global Theme KCM.
I also used svgcleaner on the original preferences-desktop-theme.
Test Plan:
The new preferences-desktop-theme-global icon:
At 100%:
Reviewers: VDG, ngraham
Reviewed By: VDG, ngraham
Subscribers: ngraham, kde-frameworks-devel
Tags: Frameworks
Differential Revision: https://phabricator.kde.org/D18277
