Move more logic into Twig filter

source/talks.html.twig

@@ -10,18 +10,9 @@ use: [talks]
 
     <h2>Last 5 Talks</h2>
 
-    {% set talks = [] %}
-    {% for talk in data.talks %}
-        {% for event in talk.events %}
-            {% set talks = talks|merge([{
-                event: event|merge(site.events[event.event]),
-                talk: talk,
-            }]) %}
-        {% endfor %}
-    {% endfor %}
-
+    {% set data = { talks: data.talks, events: site.events } %}
     {% include "talks-table" with {
-        talks: talks|format_talks|slice(0,5)
+        talks: data|format_talks|slice(0,5)
     } %}
 
     <p>Upcoming talks can be found in the <a href="{{ site.url }}/talks/archive">talks archive</a>.</p>