improve event organizer selection, show on web

web/src/lib/event.ts

@@ -17,6 +17,7 @@ export type {
   EventFragment,
   EventCategory,
   EventOccurrence,
+  EventOrganizer,
 } from "@/gql/graphql";
 
 export type SingularEvent = EventFragment & {
@@ -71,6 +72,17 @@ const EventFragmentDefinition = graphql(`
         }
       }
     }
+    organizers {
+      ... on EventOrganizer {
+        name
+        externalUrl
+        association {
+          ... on AssociationPage {
+            url
+          }
+        }
+      }
+    }
   }
 `);