Refactor code, split routes, change url in backend and update in frontend. Still have bugs, infinite loading after signup?

backend/utils/mail.js

@@ -0,0 +1,12 @@
+const nodemailer = require("nodemailer");
+
+exports.generateEmailTransporter = () =>
+  nodemailer.createTransport({
+    host: "smtp.zohocloud.ca",
+    secure: true,
+    port: 465,
+    auth: {
+      user: "campusplug@zohomailcloud.ca", //Zoho email
+      pass: "e0YRrNSeJZQd", //Zoho password
+    },
+  });