Use correct easing type values
Summary:
BUG: 382834
Per the QML specification, the animation Easing.InQuad should be specified with easing.type, not easing.
Test Plan:
run kscreenlocker --testing
The console output should not display a warning about the animation.
Reviewers: davidedmundson
Subscribers: plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D6970