kit: update discord name

cf-worker/src/kit.html

@@ -12,7 +12,7 @@
 	<a href="/">← back</a>
 	<main class="kit">
 		<h1>forevermore ship kits</h1>
-		order on the <a href="https://discord.gg/WJGwna8Kzs">ICR discord</a>
+		order on the <a href="https://discord.gg/WJGwna8Kzs">ICON discord</a>
 		{{availability}}
 
 		<h2>RCT FSE LCB</h2>