* If the dialog window shouldn't have a titlebar during construction, update accordingly only when showing to fix Windows displaying a window without titlebar on first show
* Only save geometry if the window is floating. Otherwise geometry while docked is saved whih gives weird results on subsequent starts, since it may be floating by default anyway (at least on Linux where titlebar being disabled is allowed while floating)
* Vertical title bar doesn't seem to work on Windows, add note in preferences dialog
* Windows users cannot move a window which has no native decorations. Toggling a dock widget's titlebar off also removes native decorations on a floating window. Until we implement a replacement titlebar by overriding paintEvents, simply force the floating window to go back to docked state after we toggled the titlebar off.
* Fix ME and SE versions of details dialog not displaying their content properly after change to QDockWidget
* Add option to toggle titlebar and orientation of titlebar in preferences dialog
* Fix setting layout on PE details dialog window while layout already set, by removing the self (parent) reference in constructing the QSplitter
- Format all files with black
- Update tox.ini flake8 arguments to be compatible
- Add black to requirements-extra.txt
- Reduce ignored flake8 rules and fix a few violations
