Change BB&B link

public/content/extras.mdx

@@ -34,7 +34,7 @@
     text="Livestreamed math lectures with interactive questions to test your knowledge along the way"
   />
   <FeatureCard
-    link="https://www.benbenandblue.com/"
+    link="https://www.youtube.com/@BenBenandBlue/videos"
     image="images/extras/ben-ben-blue.jpg"
     title="Ben, Ben and Blue"
     text="Conversations with three friends about education and content creation."