Use Baka MPlayer or mpc-qt as the default media player

[louies0623]

https://github.com/u8sand/Baka-MPlayer The default control interface at the bottom of MPV is not easy to use and requires an easy-to-control GUI. This is a player based on Qt and Libmpv. Or Media Player Classic Qute Theater https://github.com/mpc-qt/mpc-qt