Fix Spanish localization of the home page and footer slogans and copyright

layouts/index.html

@@ -8,7 +8,7 @@
     {{- $url := $.RelPermalink -}}
     <nav class="site bulleted">
       {{- range . -}}
-        <li><a class="{{ if eq .URL $url }}active{{ end }}" href="{{ .URL }}"><span>{{ .Name }}</span></a></li>
+        <li><a class="{{ if eq .URL $url }}active{{ end }}" href="{{ .URL }}"><span>{{ i18n .Identifier | default .Name }}</span></a></li>
       {{- end -}}
     </nav>
   {{ end }}

layouts/partials/footer.html

@@ -1,8 +1,8 @@
 <footer class="site">
   <ul class="slogans">
-    <li>Trans rights are human rights.</li>
-    <li>Black lives matter.</li>
-    <li>Get vaccinated.</li>
+    <li>{{ i18n "transRights" }}</li>
+    <li>{{ i18n "blackLivesMatter" }}</li>
+    <li>{{ i18n "getVaccinated" }}</li>
   </ul>
-  <p>Copyright © <time datetime="{{ now.Year }}">{{ now.Year }}</time> <a href="{{ `` | absURL }}">Eryn Wells</a></p>
+  <p>Copyright © <time datetime="2020">2020</time>—<time datetime="{{ now.Year }}">{{ now.Year }}</time> <a href="{{ `` | absURL }}">Eryn Wells</a></p>
 </footer>