Add 22px dialog-warning icon
Summary:
BUG: 397983
FIXED-IN: 5.53
Added a 22px dialog-warning icon, similar to the other dialog-** 22px icons.
Test Plan:
Reviewers: VDG, ngraham
Reviewed By: VDG, ngraham
Subscribers: ngraham, kde-frameworks-devel
Tags: Frameworks
Differential Revision: https://phabricator.kde.org/D17132