MPV pw.conf error fix

#If you are getting an error with mpv that says something like this:
#  [W][08:49:15.547738] pw.conf      |
#[conf.c: 1204 pw_conf_load_conf_for_context()]
#setting config.name to client-rt.conf is deprecated, using client.conf

#Then set the default audio device like this
vim ~/.config/mpv/config
audio-device=pulse