Add date ranges to event query

utils/graph-client/queries.js

@@ -4,5 +4,5 @@ import {
 } from './queryStrings';
 
 /* eslint-disable max-len */
-export const findEvents = () => createQuery(eventQuery);
+export const findEvents = variables => createQuery(eventQuery, variables);
 /* eslint-enable max-len */

utils/graph-client/queryStrings.js

@@ -1,6 +1,6 @@
 export const eventQuery = `
-  {
-    events: Events {
+  query events($range: Range) {
+    events: Events(range: $range) {
       date
       time
       band {