Add polybar configuration

.config/polybar/microphone-toggle.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+default_source="$(pactl info @DEFAULT_SOURCE@ | awk '/Default Source:/{print $3}')"
+state="$(pactl list sources | awk '/Name: '"$default_source"'/{x=1}/Mute:/&&x==1{print $2;x=0}')"
+
+if [ "$state" = "no" ]
+then
+    #echo "" # on
+    echo "󰍬"
+else
+    #echo "" # muted
+    echo "󰍭"
+fi