Improve polybar configs

.config/polybar/launch.sh

@@ -1,7 +1,9 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Terminate already running bar instances
-killall -q polybar
+pkill polybar
+
+sleep 0.5
 
 # Wait until the processes have been shut down
 while pgrep -u $UID -x polybar >/dev/null; do sleep 1; done