//TODO: Implement this method & return the details about the user
// Step 1 - Get the user details using Email (later from the JWT token) - 404 Not Found
// Step 2 - Validate the request (input validation, data format etc.) - 400 Bad Request
// Step 3 - Update the user details (only update able fields) - 403 Forbidden
// Step 4 - Return the details of the user if updated - 200 OK