Various group events improvements

Adds a button to show pasts events of a group if no upcoming events are
displayed
q
Closes #690

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/src/components/Event/EventMinimalistCard.vue

@@ -1,6 +1,6 @@
 <template>
   <router-link
-    class="event-minimalist-card-wrapper"
+    class="event-minimalist-card-wrapper bg-white rounded-lg shadow-md"
     dir="auto"
     :to="{ name: RouteName.EVENT, params: { uuid: event.uuid } }"
   >