update the message, extract form link to locales

app/views/layouts/application.html.erb

@@ -62,7 +62,7 @@
       <aside>
         <%= govuk_phase_banner(
           tag: { text: 'Beta' },
-          text: "This is a new service – <a class=\"govuk-link\" href=\"https://forms.office.com/Pages/ResponsePage.aspx?id=EGg0v32c3kOociSi7zmVqC4YDsCJ3llAvEZelBFBLUBURFVUTzFDTUJPQlM4M0laTE5DTlNFSjJBQi4u\">give feedback</a> to help us improve it".html_safe
+          text: "This is a new service – help us improve it by <a class=\"govuk-link\" href=\"#{t('feedback_form')}\" rel=\"noreferrer noopener\" target=\"_blank\">giving us your feedback (opens in a new tab)</a>".html_safe
         ) %>
         <%= content_for(:breadcrumbs) %>
         <%= content_for(:before_content) %>

config/locales/en.yml

@@ -31,6 +31,7 @@
 
 en:
   service_name: "Submit social housing lettings and sales data (CORE)"
+  feedback_form: "https://forms.office.com/Pages/ResponsePage.aspx?id=EGg0v32c3kOociSi7zmVqC4YDsCJ3llAvEZelBFBLUBURFVUTzFDTUJPQlM4M0laTE5DTlNFSjJBQi4u"
   organisation:
     updated: "Organisation details updated"