Switch workspace and power icons to font-awesome

nixos/home-manager/env/config/polybar/polybar.ini

@@ -97,7 +97,7 @@ click-left = "rofi -show drun &"
 
 [module/power-menu]
 type = custom/text
-content = "󰐥 "
+content = " "
 click-left = "~/.dotfiles/scripts/powermenu"
 
 [module/xworkspaces]
@@ -108,11 +108,10 @@ icon-1 = "II; "
 icon-2 = "III; "
 icon-3 = "IV; "
 icon-4 = "V; "
-icon-5 = "VI;󰓓 "
-icon-6 = "VII;󰌾 "
-icon-7 = "VIII;󰒋 "
-icon-8 = "IX;󱣴 "
-icon-9 = "X;󱣴 "
+icon-5 = "VI; "
+icon-6 = "VII; "
+icon-7 = "VIII; "
+icon-default = " "
 
 label-active = %icon%
 label-active-background = ${colors.background-alt}