Fix link json again (#12)

Use id token instead of access token

src/services/__mocks__/uploadFile.js

@@ -1,6 +1,6 @@
 import delay from "../../utils/delay";
 
-let uploadFileResponse = { data: { link: { link: "CLOUDFRONT_URL" } } };
+let uploadFileResponse = { data: { link: "CLOUDFRONT_URL" } };
 let uploadFileDelay = false;
 let issuedCancelToken = null;