allow to make form field optional

app/views/submit_form/completed.html.erb

@@ -2,12 +2,12 @@
   <div class="space-y-6 mx-auto">
     <div class="space-y-6">
       <div class="flex items-center justify-center">
-        <div class="flex items-center">
+        <a href="/" class="flex items-center">
           <div class="mr-3">
             <%= render 'shared/logo', width: "50px", height: "50px"%>
           </div>
           <h1 class="text-5xl font-bold text-center">DocuSeal</h1>
-        </div>
+        </a>
       </div>
       <div class="flex items-center bg-base-300 rounded-xl p-4 mb-4">
         <div class="flex items-center">