Detect if pipewire is present

[botiapa]

I added 2 checks, since I didn't want to panic on a system which has pipewire installed, but isn't active. (I'm not really sure who would do this, but still)

I don't have a system which has pure pulseaudio installed, so I couldn't test it on pa. Could you test it @ShayBox?

[ShayBox]

I don't have pulseaudio either. but the code looks like it would work as intended