[polybar] Add thunderbird icon to polywins

.config/polybar/scripts/polywins

@@ -49,7 +49,6 @@ get_icon_by_name()
 	name=$(echo "$1" | tr '[:upper:]' '[:lower:]')
 	declare -A ICON_MAP=(
 		[10]=
-		[alacritty]=
 		[brave-browser]=
 		[chromium]=
 		[code]=
@@ -67,7 +66,6 @@ get_icon_by_name()
 		[kitty]=
 		[librewolf-default]=
 		[librewolf]=
-		[mailspring]=
 		[nautilus]=
 		[nextcloud]=
 		[nvim]=
@@ -76,8 +74,9 @@ get_icon_by_name()
 		[slack]=
 		[spotify]=
 		[spotube]=󰋋
-        [steam]=
+ 	 	[steam]=
 		[telegramdesktop]=
+		[thunderbird]=
 		[tilix]=
 		[tor]=
 		[vivaldi-stable]=