Pressing Enter should open submenus in Kicker
Summary: BUG: 375756
Test Plan:
Pressed enter on an item with children. Menu appeared
Pressed enter on an application. It launched as before
Reviewers: Plasma, hein
Reviewed By: Plasma, hein
Subscribers: hein, mart, cfeck, plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D4401