mpv config: BL uses the deprecated [pseudo-gui] profile

[johnraff]

man mpv says

   WARNING:
   Currently, you can extend the pseudo-gui profile in  the  config  file
   the normal way. This is deprecated. In future mpv releases, the behav‐
   ior might change, and not apply your additional settings, and/or use a
   different profile name.

I would suggest we define our own profile, eg

 [bl-pseudo-gui]
player-operation-mode=pseudo-gui

and use it in /usr/bin/bl-mpv: MPV_PROFILE=bl-pseudo-gui to allow user modification going forward.

[johnraff]

Suggested workaround: #88

[johnraff]

#88 seemed to do the job.