disable leds after blink runs to present user feedback

sdcard/rootfs/root/pwnagotchi/scripts/blink.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-for i in `seq 1 $1`;
+for i in $(seq 1 "$1");
 do
 	echo 0 >/sys/class/leds/led0/brightness
 	sleep 0.3
@@ -10,3 +10,8 @@ done
 
 echo 0 >/sys/class/leds/led0/brightness
 sleep 0.3
+
+# Powersave options
+# Disable power LED ~30ma
+echo none >/sys/class/leds/led0/trigger
+echo 1 >/sys/class/leds/led0/brightness