feat: new-sign-up-form, request invite widget, request invite tests, get_sketches with owner

community/www/home/index.html

@@ -12,9 +12,7 @@
     <div class="jumbotron">
       <h1 class="display-4">Guided online courses, with a mentor at your back.</h1>
       <p class="lead">Hands-on online courses designed by experts, delivered by passionate mentors.</p>
-      <p class="lead">
-        <a class="btn btn-primary btn-lg" href="#" role="button">Request Invite</a>
-      </p>
+      {{ widgets.RequestInvite() }}
     </div>
   </div>
 </section>