Add get-volume script

.config/eww/scripts/get-volume

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+getvolume() {
+        volume=$(pactl list sinks | grep Volume | awk 'NR==1{print $5}' | sed 's/%//')
+        mute=$(pactl list sinks | grep Mute | awk 'NR==1{print $2}')
+        if [[ $mute == "yes" ]]; then
+                is_muted="true"
+        else
+                is_muted="false"
+        fi
+        echo "{\"value\": ${volume}, \"is_muted\": ${is_muted}}"
+}
+
+getvolume
+pactl subscribe | grep -E 'sink|source' | while read -r line; do
+	getvolume
+done