Improved contact field entry styling

Author: rsmithlal

app/views/better_together/contact_details/_contact_fields.html.erb

@@ -1,5 +1,5 @@
 <%# locals: (form:) %>
-<div class="contact-detail-fields border-bottom pb-3 mb-3">
+<div class="contact-detail-fields border-top py-3 my-3">
   <h4><%= t('better_together.contactable.contact') %></h4>
   <div class="row">
     <div class="col-6 mb-3 pb-3 border-bottom">