fix: fix the CORS header

src/index.ts

 import express, { Express } from "express";
 import router from "./routes/index" 
+import { allowCors } from "./middleware/CORS/allowCors";
 
 const port = 8000;
 const app: Express = express();
 app.use(express.json());
+app.use (allowCors) ;
 app.use ("/api",router);  
 
 

src/middleware/CORS/allowCors.ts

+import { Request, Response } from "express"
+
+export const allowCors = (req: Request, res: Response, next: any) => {
+    res.setHeader('Access-Control-Allow-Origin', '*')
+    res.setHeader('Access-Control-Request-Method', '*');
+
+    next();
+}
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