Greatly improve Polybar launch/reload speed

.config/polybar/launch.sh

@@ -4,7 +4,7 @@
 killall -q polybar
 
 # Wait until the processes have been shut down
-while pgrep -u $UID -x polybar >/dev/null; do sleep 1; done
+while pgrep -u $UID -x polybar >/dev/null; do : ; done
 
 for m in $(polybar --list-monitors | cut -d":" -f1); do
 	WIRELESS=$(ls /sys/class/net/ | grep ^wl | awk 'NR==1{print $1}') MONITOR=$m polybar --reload mainbar-i3 &