Add Hack'n'Sun to frontpage in preliminary events section

templates/frontpage/events.html

+{# FIXME generate dynamically #}
+{% set title = "Nächste Veranstaltungen" %}
+{% set slug = "hacknsun-2024-bn" %}
+{% include "shortcodes/event_section.html" %}

templates/index.html

@@ -5,5 +5,6 @@
 {% block main %}
   {% include "frontpage/claim.html" %}
   {% include "frontpage/projects.html" %}
+  {% include "frontpage/events.html" %}
   {% include "frontpage/blog.html" %}
 {% endblock %}