Add private event invitations

app/templates/index.html

@@ -205,6 +205,7 @@
 {% macro event_card(concert, linked=false) %}
     <a href="/concerts/{{ concert.id }}" class="concert-card{% if linked %} linked-event{% endif %}">
         <span class="event-category">{{ concert.event_type_label }}</span>
+        {% if concert.is_invited %}<span class="event-category"> · ✉ Eingeladen</span>{% elif concert.visibility == 'friends' %}<span class="event-category"> · 🔒 Nur Freunde</span>{% elif concert.visibility == 'private' %}<span class="event-category"> · 🔐 Privat</span>{% endif %}
         <div class="concert-artist">
             {% if concert.event_type == 'festival' %}🎪{% elif concert.event_type == 'other' %}🥂{% else %}🎸{% endif %}
             {{ concert.artist }}
@@ -290,7 +291,7 @@
 
     {% if upcoming_concerts or past_concerts %}
 
-        <div class="concert-list">
+        <div class="concert-list" id="event-invitations">
 
             {% for concert in upcoming_concerts %}
                 <div class="event-group">