done refactoring User controller + UserModel

src/index.ts

@@ -42,7 +42,7 @@ app.use('/cart', cartRouter);
 
 app.all('*', (req, res, next) => {
   // res.status(404).json({ error: 'Route not found' });
-  const error = new ApiError('Route not found');
+  const error = new ApiError('Are you lost?');
   error.statusCode = 404;
   error.status = 'fail';
   next(error)