[Analog Clock] Port config window to QQC2 and use Kirigami FormLayout

Authored by ngraham on Jan 20 2019, 6:03 PM.

Description

[Analog Clock] Port config window to QQC2 and use Kirigami FormLayout

Test Plan:

Reviewers: Plasma, davidedmundson

Reviewed By: Plasma, davidedmundson

Subscribers: davidedmundson, plasma-devel

Tags: Plasma

Differential Revision: https://phabricator.kde.org/D18411