FIX [render] use isAbsent method to render user as absent or not + place homepage msg above searchbar

src/Bundle/ChillMainBundle/Resources/views/layout.html.twig

@@ -69,6 +69,11 @@
 
                 {% block content %}
                     <div class="col-8 main_search">
+                        {% if app.user.isAbsent %}
+                            <div class="row mb-5">
+                                <p class="alert alert-warning" role="alert">{{'absence.You are marked as being absent'|trans }}</p>
+                            </div>
+                        {% endif %}
                         <h2>{{ 'Search'|trans }}</h2>
 
                         <form action="{{ path('chill_main_search') }}" method="get">