Allow up to 12288 LEDs in the UI

wled00/data/settings_leds.htm

@@ -5,7 +5,7 @@
 	<meta content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" name="viewport">
 	<title>LED Settings</title>
 	<script>
-		var d=document,laprev=55,maxB=1,maxV=0,maxM=4000,maxPB=8465,maxL=1333,maxLbquot=0; //maximum bytes for LED allocation: 4kB for 8266, 32kB for 32
+		var d=document,laprev=55,maxB=1,maxV=0,maxM=4000,maxPB=12288,maxL=1333,maxLbquot=0; //maximum bytes for LED allocation: 4kB for 8266, 32kB for 32
 		d.um_p = [];
 		d.rsvd = [];
 		d.ro_gpio = [];