Remove hackathon buttons from overview and hero (#323)

Co-authored-by: Alessandro Pignotti <[email protected]>

Author: jadentel

sites/cheerpj/src/content/docs/00-overview.mdx

@@ -10,28 +10,6 @@ import { DISCORD_URL } from "@/consts.ts";
 import JNLPRunnerButton from "@leaningtech/astro-theme/components/JNLPRunnerButton.astro";
 import AppletRunnerButton from "@leaningtech/astro-theme/components/AppletRunnerButton.astro";
 
-<div
-	class="rounded-lg bg-yellow-900/10 py-1 px-3 my-6"
-	style="border: 1px groove #fe900d;"
->
-	<div class="text-md font-semibold leading-tight" style="color:#ffb547;">
-		Join the Hackathon, build with CheerpJ!
-	</div>
-	<div class="text-sm mt-0.5" style="color:#e5e7eb;">
-		Join our first <b>CheerpJ Hackathon</b> in the second half of November,
-		exploring how CheerpJ can be applied to real-world science and research
-		projects, with a a <b>£500</b> prize awaiting the winning team.
-		<a
-			href="https://labs.leaningtech.com/cheerpj-hackathon"
-			class="underline text-primary-500"
-			target="_blank"
-			rel="noopener"
-		>
-			Register now
-		</a>
-	</div>
-</div>
-
 <div class="not-prose flex gap-2 mb-2">
 	<img
 		src="https://img.shields.io/badge/version-4.0-orange"

sites/labs/src/components/landing-page/Hero.astro

@@ -39,16 +39,6 @@ import Wrapper from "@leaningtech/hero/Hero.astro";
 						iconLeft="fa-brands:discord"
 					/>
 				</div>
-				<!-- Hackathon button -->
-				<div class="mt-6">
-					<a
-						href="https://labs.leaningtech.com/cheerpj-hackathon"
-						class="inline-flex items-center justify-center gap-2 rounded-md border border-amber-500 bg-amber-600 px-3.5 py-2.5 font-medium text-white shadow-sm
-						transition-all duration-200 hover:bg-amber-500 hover:border-white hover:ring-1 hover:ring-white/60"
-					>
-						Join the CheerpJ Hackathon
-					</a>
-				</div>
 			</div>
 		</div>
 		<div class="flex justify-center">