[bug#63863] [PATCH v2] gnu: home: Add support for home-pipewire-service

[Brian Cully]

This address most of the issues, I hope.

* I've added a config for ALSA.
* I'm disabling autospawn for PulseAudio when ‘enable-pulseaudio?’ 
 is #t
* I've added a paragraph to the documentation explaining 
 WireGuard.
* The missing Shepherd ‘stop’ fields are no longer missing.
* I've changed the wording for the Shepherd ‘pipewire’ service 
 documentation.
* The documentation generation function has been removed.
* I've reworded the ‘enable-pulseaudio?’ configuration field of 
 ‘home-pipewire-configuration’.

-bjc