Resolve "Site name on is not translatable"

Closes #83 (closed)

templates/layout/page.html.twig

@@ -168,13 +168,13 @@
           {% if site_show_name %}
             <div class="site-info__text__name">
               <a href="{{ path('<front>') }}" title="{{ 'Home'|t }}" rel="home">
-                {{ site_name }}
+                {{ site_name | t }}
               </a>
             </div>
           {% endif %}
 
           {% if site_show_slogan %}
-            <div class="site-info__text__slogan">{{ site_slogan }}</div>
+            <div class="site-info__text__slogan">{{ site_slogan | t  }}</div>
           {% endif %}
 
         </div>