Use consistent "Suspend" terminology
Summary: We use "Suspend" and "Hibernate" in most places except for KRunner, where we currently use more technical terms that expose the implementation details (suspend to ram vs suspend to disk). Let's be consistent.
Reviewers: Plasma, VDG, davidedmundson, broulik
Reviewed By: Plasma, davidedmundson, broulik
Subscribers: sudhirkhanger, plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D15386