Add May 4th election day messaging

Makefile

@@ -12,3 +12,7 @@ i18n_extract:
 .PHONY: i18n_compile
 i18n_compile:
 	pybabel compile -f -d postcode_lookup/locale/
+
+.PHONY: failover
+failover:
+	python failover/build.py

failover/failover.html

@@ -9,6 +9,14 @@
     <!-- DC failover page -->
     <!-- end testing comment -->
     <h1>Try again later</h1>
-    <p>Something has gone wrong. We have been notified of the issue and are working on fixing it.</p>
-    <p>Please try back later</p>
+    <p>Sorry, there's a problem with this service at the moment. We're working to fix it as soon as possible.</p>
+
+    <p>Elections are taking place in England on 4 May 2023.
+        If there's an election in your area, you should have received a poll card.
+        This will tell you where your polling station is.</p>
+
+    <p>Polling stations are open from 7am to 10pm on polling day.</p>
+
+    <p>If you're voting at the polling station, you'll need to take photo ID with you.
+        <a href="https://www.electoralcommission.org.uk/i-am-a/voter/voter-id/accepted-forms-photo-id">Find out more about this new requirement</a>.</p>
 {% endblock %}

postcode_lookup/templates/index.html

@@ -53,6 +53,14 @@ <h2 id="paragraph-14945-title" class="slice__title">
                                         </div>
                                     </div>
                                 </section>
+
+                            <div class="c-polling-station-slice" style="margin-top:1em">
+                                <p>Elections are taking place in England on 4 May 2023, and polling stations will be
+                                    open from 7am to 10pm.</p>
+                                <p>If you're voting at the polling station, you'll need to take photo ID with you.</p>
+                                <p><a href="https://www.electoralcommission.org.uk/i-am-a/voter/voter-id/accepted-forms-photo-id" class="o-button o-button--primary o-button--dark">
+                                    Check the list of accepted forms of photo ID</a></p>
+                            </div>
                             </div>
 
                         </div>

postcode_lookup/templates/result.html

@@ -82,6 +82,10 @@
     </style>
 
     <div class="dc-container">
+    <p class="c-polling-station-slice">
+        You’ll need to take photo ID with you if you’re voting at the polling station.
+            <a href="https://www.electoralcommission.org.uk/i-am-a/voter/voter-id/accepted-forms-photo-id">Check the list of accepted forms of photo ID</a>.
+    </p>
         {% for date in api_response.dates %}
             <h2 class="o-type-h2">{{ date.date|date_filter }}</h2>
             <div class="dc-grid">