Move webchat section to be above the email section

There was some confusion in the last change
(5b00d3e) and it looks like they would
prefer the webchat section to appear above the email section (rather
than above the phone section).

app/views/content_items/contact.html.erb

@@ -16,11 +16,6 @@
   <div class="govuk-grid-column-two-thirds">
 
     <% body = capture do %>
-      <% if @content_item.show_webchat? %>
-        <h2 id="webchat-title">Webchat</h2>
-        <%= render 'shared/webchat' %>
-      <% end %>
-
       <% if @content_item.online_form_links.any? %>
         <h2 id="online-forms-title">Online</h2>
         <% @content_item.online_form_links.each do |link| %>
@@ -32,6 +27,11 @@
         <%= @content_item.online_form_body %>
       <% end %>
 
+      <% if @content_item.show_webchat? %>
+        <h2 id="webchat-title">Webchat</h2>
+        <%= render 'shared/webchat' %>
+      <% end %>
+
       <% if @content_item.email.any? %>
         <h2 id="email-title">Email</h2>
         <% @content_item.email.each do |email_group| %>