fix demo mode

app/views/shared/_demo_alert.html.erb

@@ -1,7 +1,7 @@
 <div class="mx-auto mt-1.5">
   <div class="py-3 rounded-2xl flex items-center justify-between mx-4 md:mx-0">
     <div class="w-full text-center">
-      <span class="font-bold">DocuSeal Demo Environment</span>
+      <span class="font-bold">Demo Environment</span>
       <br>
       Feel free to
       <a href="<%= new_template_path %>" data-turbo-frame="modal" class="inline underline font-medium">create a new template</a> document form or