Added a few useful 'Sample commands' for the Run Command plugin
Summary:
Added the following example commands for the Run Command plugin:
- Lock Screen
- Unlock Screen
- Close All Vaults
- Forcefully Close All Vaults
Reviewers: Plasma, ngraham, albertvaka, nicolasfella, KDE Connect
Reviewed By: nicolasfella, KDE Connect
Subscribers: ngraham, kdeconnect
Tags: KDE Connect
Differential Revision: https://phabricator.kde.org/D13136