fix(signup.astro): typo unnecessary word (#5060)

src/pages/signup.astro

@@ -22,7 +22,7 @@ import {AccountTerms} from "../components/AccountTerms";
         </p>
         <p class='mb-3 block text-sm text-gray-600 sm:hidden'>
           Create an account to track your progress, showcase your skill-set and
-          be a part of the community. videos.
+          be a part of the community.
         </p>
       </div>