[enh] open first config panel panel by default

src/js/yunohost/main.js

@@ -66,6 +66,10 @@
           return a === b;
         });
 
+        Handlebars.registerHelper('neq', function(a, b) {
+          return a !== b;
+        });
+
         Handlebars.registerHelper('in', function(a) {
           // skip first one
           for (var i = 1; i < arguments.length; ++i) {

src/views/app/app_config-panel.ms

@@ -23,7 +23,7 @@
                 </a>
             </h2>
         </div>
-        <div id="collapse-{{ @index }}" class="panel-collapse collapse" role="tabpanel" aria-labelledby="heading-{{ @index }}">
+        <div id="collapse-{{ @index }}" class="panel-collapse {{#if (neq @index 0)}}collapse{{/if}}" role="tabpanel" aria-labelledby="heading-{{ @index }}">
             <div class="panel-body">
             <form class="form-horizontal">
                 {{#sections}}