use Pro instead of Enterprise

app/views/sms_settings/_placeholder.html.erb

@@ -3,7 +3,7 @@
   <div>
     <p class="font-bold">Send signature requests via SMS</p>
     <p class="text-gray-700">
-      Unlock with DocuSeal Enterprise
+      Unlock with DocuSeal Pro
       <br>
       <a class="link font-medium" target="_blank" href="<%= "#{Docuseal::CONSOLE_URL}/#{Docuseal.multitenant? ? 'plans' : 'on_premise'}" %>">Learn More</a>
     </p>