Switch volume module to pulse

wow this one is quite overdue

applications/polybar/config-zerotwo

@@ -248,7 +248,7 @@ format-underline = #5555ff
 label = %date% %time%
 
 [module/volume]
-type = internal/volume
+type = internal/pulseaudio
 
 format-volume = <label-volume> <bar-volume>
 label-volume = VOL