Make it possible to add commands for the RunCommandsPlugin from Android
Summary: Add an ActionBar entry for adding a command to the list. The current way to add commands is quite hidden.
Reviewers: KDE Connect, mtijink
Reviewed By: KDE Connect, mtijink
Subscribers: philipc, mtijink, KDE Connect
Tags: KDE Connect
Differential Revision: https://phabricator.kde.org/D7959