Get webchat info from content item

This commit replaces the existing hardcoded webchat info for one page with the relevant content item field, to allow editors to specify this text using contacts-admin.

app/presenters/contact_presenter.rb

@@ -8,6 +8,10 @@ def title_and_context
     end
   end
 
+  def webchat_body
+    content_item.dig("details", "more_info_webchat").try(:html_safe)
+  end
+
   def online_form_links
     contact_form_links = content_item["details"]["contact_form_links"] || []
     contact_form_links.map do |link|

app/views/content_items/contact.html.erb

@@ -46,7 +46,7 @@
 
       <% if @content_item.show_webchat? %>
         <h2 id="webchat-title">Webchat</h2>
-        <p><%= render 'shared/webchat' %></p>
+        <%= render 'shared/webchat' %>
       <% end %>
 
       <% if @content_item.phone.any? %>

app/views/shared/_webchat.html.erb

@@ -1,29 +1,27 @@
-<span class="js-webchat"
-  data-availability-url="<%= @content_item.webchat_availability_url %>"
-  data-open-url="<%= @content_item.webchat_open_url %>">
-  <% if webchat_unavailable? %>
-    <%= unavailability_message %>
-  <% else %>
-    <% if @content_item.base_path == '/government/organisations/hm-revenue-customs/contact/tax-credits-enquiries' %>
-      Advisers can only talk to you about Child Tax Credit and Working Tax Credit.
-      They won't be able to transfer you to another webchat team.
-      <br/>
-      <br/>
+<%= @content_item.webchat_body %>
+
+<p>
+  <span class="js-webchat"
+    data-availability-url="<%= @content_item.webchat_availability_url %>"
+    data-open-url="<%= @content_item.webchat_open_url %>">
+    <% if webchat_unavailable? %>
+      <%= unavailability_message %>
+    <% else %>
+      <span class="js-webchat-advisers-error">
+        Webchat is unavailable at the moment because of technical problems.
+      </span>
+      <span class="js-webchat-advisers-unavailable hidden">
+        Webchat is closed at the moment.
+      </span>
+      <span class="js-webchat-advisers-busy hidden">
+        All webchat advisers are busy at the moment.
+      </span>
+      <span class="js-webchat-advisers-available hidden">
+        Advisers are available to chat.
+        <a href="#" rel="external" class="js-webchat-open-button">Speak to an adviser now</a>.
+      </span>
     <% end %>
-    <span class="js-webchat-advisers-error">
-      Webchat is unavailable at the moment because of technical problems.
-    </span>
-    <span class="js-webchat-advisers-unavailable hidden">
-      Webchat is closed at the moment.
-    </span>
-    <span class="js-webchat-advisers-busy hidden">
-      All webchat advisers are busy at the moment.
-    </span>
-    <span class="js-webchat-advisers-available hidden">
-      Advisers are available to chat.
-      <a href="#" rel="external" class="js-webchat-open-button">Speak to an adviser now</a>.
-    </span>
-  <% end %>
-</span>
+  </span>
+</p>
 <% # This is inline in the source however slimmer will optimize this. %>
 <%= javascript_include_tag "webchat", integrity: true, crossorigin: 'anonymous' %>