Fix and clean up shipped config files

default/systemd/user/blob-speaker-tuning.service

@@ -1,6 +1,5 @@
 [Unit]
 Description=Blob speaker tuning filter-chain
-Documentation=https://github.com/basecamp/omarchy/blob/master/docs/AUDIO-TUNING.md
 # WirePlumber does the linking, so starting before it is up risks the output being
 # linked before the speaker device has been discovered.
 After=pipewire.service wireplumber.service