include credentials in edx requests (#155)

Author: ChristopherChudzicki

frontend-demo/src/services/openedx/client.ts

@@ -1,6 +1,10 @@
-import axios from "axios"
+import defaultAxios from "axios"
 import type { AxiosResponse } from "axios"
 
+const axios = defaultAxios.create({
+  withCredentials: true,
+})
+
 type CourseV2BlocksRequest = {
   blockUsageKey: string
   username: string