improve ux in admin configuration interface

Resources/views/Admin/index.html.twig

@@ -4,7 +4,7 @@
     <h1>{{ 'Administration interface'|trans }}</h1>
     
     {{ 'welcome_message_raw'|trans|raw }}
-    
+
     <div>
         <h2>{{ 'Configuration alerts'|trans }}</h2>
             

Resources/views/Admin/layout.html.twig

@@ -34,7 +34,7 @@
     {% block admin_content %}<!-- block personcontent empty -->
         <div class="container">
             <div class="grid-10 push-1">
-                Welcome to the admin section !
+                <h2>{{ 'Welcome to the admin section !'|trans }}</h2>
             </div>
         </div>
     {% endblock %}

Resources/views/Admin/layoutWithVerticalMenu.html.twig

@@ -32,6 +32,6 @@
 
 {% block layout_wvm_content %}
     {% block admin_content %}<!-- block personcontent empty -->
-        Welcome to the admin section !
+        <h2>{{ 'Welcome to the admin section !'|trans }}</h2>
     {% endblock %}
 {% endblock  %}

Resources/views/Layout/_footer.html.twig

@@ -1,4 +1,4 @@
 <footer class="footer">
     <p>{{ 'This program is free software: you can redistribute it and/or modify it under the terms of the <strong>GNU Affero General Public License</strong>'|trans|raw }}
-        <br/> <a href="https://{{ app.request.locale }}.wikibooks.org/wiki/Chill">{{ 'User manual'|trans }}</a></p>
+        <br/> <a href="https://{{ app.request.locale }}.wikibooks.org/wiki/Chill" target="_blank">{{ 'User manual'|trans }}</a></p>
 </footer>

translations/messages.fr.yml

@@ -90,7 +90,8 @@ Permissions management of your chill installation: Gestion des permissions de vo
 
 #admin section
 'Administration interface': Interface d'administration
-
+Welcome to the admin section !: >
+    Bienvenue dans l'interface d'administration !
 
 #admin section for center's administration
 Create a new center: Créer un nouveau centre