audio: add script to fzf change audio output

modules/scripts/changeAudioOutput.nix

@@ -0,0 +1,21 @@
+{
+  writeShellApplication,
+  fzf,
+  pactl,
+  jq,
+  ...
+}:
+writeShellApplication {
+  name = "custom-changeAudioOutput";
+  runtimeInputs = [
+    fzf
+    pactl
+    jq
+  ];
+  text = ''
+    $select=pactl -f json list sinks | jq -r '.[].name' | fzf
+    if [[ -n "$select" ]]; then
+      pactl set-default-sink $select
+    fi
+  '';
+}