Clean up the taxonomy list

Make the name of the taxonomy copyable by putting it in the dom, rather than in
the CSS content:.

layouts/partials/page/taxonomy_list.html

@@ -13,9 +13,10 @@
   {{- with T $taxonomy (len .) }}
     {{ $name = . }}
   {{ end -}}
-  <ul class="taxonomy-list" data-name="{{ $name }}">
-    {{ range . }}
-      <li><a href="{{ .RelPermalink }}">{{ .Title }}</a></li>
-    {{ end }}
-  </ul>
+  <div class="taxonomy-list">
+    <span class="taxonomy-list__name">{{ $name }}</span>
+    <ul class="taxonomy-list__terms" data-name="{{ $name }}">
+      {{ range . }}<li><a href="{{ .RelPermalink }}">{{ .Title }}</a></li>{{ end }}
+    </ul>
+  </div>
 {{ end }}