Update polybar icons

.config/polybar/config.ini

@@ -52,6 +52,7 @@ font-0 = monospace:pixelsize=10;1
 font-1 = unifont:fontformat=truetype:size=8:antialias=false;0
 font-2 = Symbola:size=10
 font-3 = OpenSymbol:size=10
+font-4 = FontAwesome:size=10
 
 modules-left = dwm
 modules-center = player-mpris-tail
@@ -166,9 +167,11 @@ label = %percentage:2%%
 type = internal/memory
 interval = 2
 format-prefix = "MEM "
+format-prefix-font = 4
 format-prefix-foreground = ${colors.foreground-alt}
 format-underline = #4bffdc
 label = %percentage_used%%
+label-font = 4
 
 [module/wlan]
 type = internal/network
@@ -228,7 +231,7 @@ label = %date% %time%
 type = internal/pulseaudio
 
 format-volume = <label-volume> <bar-volume>
-label-volume = VOL %percentage%%
+label-volume = 🔊%percentage%%
 label-volume-foreground = ${root.foreground}
 
 label-muted = 🔇 muted