Fetch config for export event participant formats

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

js/src/graphql/config.ts

@@ -113,6 +113,9 @@ export const CONFIG = gql`
           isDefault
         }
       }
+      exportFormats {
+        eventParticipants
+      }
     }
   }
 `;