set mpv and mpd to use pipewire instead of pulseaudio

Set mpv to use alsa/pipewire instead of pulseaudio and mpd the music player daemon to use pipewire by setting the audio device in their respective config files

Pipewire install: https://github.com/NapoleonWils0n/cerberus/blob/master/pipewire/pipewire-install.org

mpd config: https://raw.githubusercontent.com/NapoleonWils0n/ubuntu-dotfiles/master/.config/mpd/mpd.conf

mpv config: https://raw.githubusercontent.com/NapoleonWils0n/ubuntu-dotfiles/master/.config/mpv/mpv.conf

arch wiki mpd: https://wiki.archlinux.org/title/Mpd

arch wiki mpv: https://wiki.archlinux.org/title/Mpv ... https://www.youtube.com/watch?v=nvBuuaA9SJU