feat: remove obsolete date range override

templates/_partials/_assignment_info.html.twig

@@ -25,7 +25,7 @@
             Einsatztermin
         </dt>
         <dd class="mt-1 text-sm leading-6 text-gray-700 sm:col-span-2 sm:mt-0">
-            {{ assignment.effectivePeriod.start|date('d.m.Y') }} - {{ assignment.effectivePeriod.end|date('d.m.Y') }}
+            {{ assignment.destination.dateFrom|date('d.m.Y') }} - {{ assignment.destination.dateTo|date('d.m.Y') }}
         </dd>
     </div>
     {% if assignment.pickup %}