Updates gnome mpv to the latest version avaliable.
Here is a short summary of the changes:
- Set default screenshot directory to XDG_PICTURES_DIR
- Improve handling of --window-scale, --autofit, --autofit-larger, and --autofit-smaller
- Add command line option for setting WM_ROLE
- Add context menu item for removing playlist items
- Add context menu item for copying location of playlist items