Reorganize tools button menu for best user experience
The suggestion in D10542#207008 was met with approval, as
Open Screenshots Folder seems like an often used feature and
therefore belongs on top, and Record Screen is only slightly
related to the actual screenshot and thus can go at the bottom.
Menu still works, same order as in planned docbook patch (see D10542).
Reviewers: Spectacle, gregormi, ngraham
Reviewed By: Spectacle, ngraham
Maniphest Tasks: T7841
Differential Revision: https://phabricator.kde.org/D10561