Add OBS to screenrecorders
Summary:
BUG: 412320
FIXED-IN: 5.65
Test Plan: Spectacle > Tools > More
Reviewers: leinir, ngraham
Reviewed By: ngraham
Subscribers: nicolasfella, kde-frameworks-devel, ngraham
Tags: Frameworks
Differential Revision: https://phabricator.kde.org/D25221