Change default behavior to remembering the selected region until Spectacle is closed
Summary:
Change the default to remembering the selected region until the next restart while still preserving the old behavior if a user had previously selected "remember region" which worked across restarts.
FEATURE: 391299
FIXED-IN: 19.04.0
Reviewers: Spectacle, VDG, ngraham
Reviewed By: Spectacle, VDG, ngraham
Subscribers: Spectacle
Tags: Spectacle
Differential Revision: https://phabricator.kde.org/D19130