Link 'Helfer*innen' in navbar to team overview when user is authenticated

shiftregister/core/templates/base.html

@@ -75,7 +75,7 @@
     <nav class="navbar">
         <div class="container">
             <div class="navbar-brand">
-                <a class="navbar-item has-text-weight-bold" href="{% url 'index' %}">Helfer*innen</a>
+                <a class="navbar-item has-text-weight-bold" href="{% if user.is_authenticated %}{% url 'team:index' %}{% else %}{% url 'index' %}{% endif %}">Helfer*innen</a>
                 <a role="button" class="navbar-burger" aria-label="menu" aria-expanded="false" data-target="main-nav">
                     <span aria-hidden="true"></span>
                     <span aria-hidden="true"></span>