polybar: add pipewire buffer size module

.config/polybar/pipewire_buffer_size.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+BUFFER_SIZES=("64" "128" "256" "512" "1024" "2048" "4096")
+
+current_buffer_size=$(pw-metadata -n settings 0 clock.force-quantum | grep -oP "value:'\K[0-9]+")
+
+if [[ $1 == "click" ]]; then
+    new_buffer_size=$(echo "${BUFFER_SIZES[@]}" | tr ' ' '\n' | xmenu)
+
+    if [[ -n $new_buffer_size ]]; then
+        pw-metadata -n settings 0 clock.force-quantum "$new_buffer_size"
+		current_buffer_size=$new_buffer_size
+    fi
+
+    exit 0
+fi
+
+echo "$current_buffer_size"