Apply suggestions from code review

Co-authored-by: Ege Akman <[email protected]>

Author: cmaureir

src/content/pages/programme/voting.mdx

@@ -23,7 +23,7 @@ from Wednesday, 5 February 23:00:00 UTC
 
 until Monday, 17 February 23:59:59 UTC
 
-<b>Thanks for your votes!</b>
+<ButtonLink disabled>Thanks for your votes!</ButtonLink>
 </div>