feat: integrate Tailwind CSS and enhance MainForm component

- Added Tailwind CSS and related packages to the project.
- Refactored App.css and index.css to use Tailwind for styling.
- Enhanced MainForm component with improved form handling, validation, and layout using Material-UI and Tailwind CSS.
- Implemented dynamic error handling and submission feedback.
- Created a new Tailwind configuration file.

backend/routes/default/frontend.route.js

@@ -1,4 +1,14 @@
 import express from "express";
 import dotenv from "dotenv";
 const router = express.Router();
-dotenv.config();
+dotenv.config();
+
+import { getAll25 } from "./frontend.data.js";
+
+router.post("/frontend", (req, res) => {
+  console.log(req.body);
+  res.status(200).json({ message: "Data received successfully" });
+  console.log(getAll25());
+});
+
+export default router;