Add Plan URL to feedback notification email.

Issue DMPRoadmap#1431

app/views/user_mailer/feedback_notification.html.erb

@@ -1,17 +1,28 @@
-<p>
-  <%= _('Hello %{user_name},') % {user_name: @recipient_name} %>
-</p>
-<p>
-  <%= sanitize _(%Q{%{requestor} has requested feedback on a plan %{link_html}. To add comments, please visit the 'Plans' page under the Admin menu in %{tool_name} and open the plan.}) % {
-    requestor: @requestor_name,
-    plan_name: @plan_name,
-    tool_name: tool_name,
+<% FastGettext.with_locale FastGettext.default_locale do %>
+  <%
+    recipient_name = @recipient.name(false)
+    requestor_name = @user.name(false)
+    plan_name = @plan.title
+    tool_name = Rails.configuration.branding[:application][:name]
+  %>
+
+  <p><%= _('Hello %{user_name},') % {user_name: recipient_name} %></p>
+
+  <p>
+    <%= raw _(%Q{%{requestor} has requested feedback on a plan %{link_html}. To add comments, please visit the 'Plans' page under the Admin menu in %{application_name} and open the plan.}) % {
+    requestor: requestor_name,
+    plan_name: plan_name,
+    application_name: tool_name,
     allow_change_prefs: false,
-    link_html: link_to(@plan_name, plan_url(@plan))
+    link_html: link_to(plan_name, plan_url(@plan))
     } %>
-</p>
+  </p>
+
+  <p>
+    Alternatively, you can click the link below:<br>
+    <%= link_to plan_url(@plan), plan_url(@plan) %>
+  </p>
 
-  <p><%= _('Hello %{user_name},') % {user_name: recipient_name} %></p>
-  <p><%= _('%{requestor} has requested feedback on a plan "%{plan_name}." To add comments, please visit the \'Plans\' page under the Admin menu in %{application_name} and open the plan.') % {requestor: requestor_name, plan_name: plan_name, application_name: tool_name, allow_change_prefs: false} %></p>
   <%= render partial: 'email_signature' %>
+
 <% end %>