feat(audio): Start using libpipewire-module-combine-stream

Previously we used virtual audio sinks and sources for combinging and
splitting audio streams, this caused audio to become choppy, switching
to libpipewire-module-combine-stream instead duplicates the audio stream
to each sink which eliminates this issue

Change-Id: I4def965d9acfccca16713ebdb530b7facd02d209
Reviewed-on: https://git.clicks.codes/c/Chimera/NixFiles/+/842
Reviewed-by: Skyler Grey <minion@clicks.codes>
Tested-by: Samuel Shuert <coded@clicks.codes>
diff --git a/systems/x86_64-linux/shorthair/default.nix b/systems/x86_64-linux/shorthair/default.nix
index d0aabb2..eecc5a8 100644
--- a/systems/x86_64-linux/shorthair/default.nix
+++ b/systems/x86_64-linux/shorthair/default.nix
@@ -2,6 +2,7 @@
 {
   imports = [
     ./assistant
+    ./audio
     ./boot
     ./backlight
     ./compositor