(feat) During registration, user get help if email is invalid or password is too short/long.
(feat) When the user logs in incorrectly, a message is displayed below the form.
(refactor) Removed console.log
(feat) Deleted incorrect email and password on unsuccessful login.
(refactor) Removed console.
(feat) Added styling class to helper message for login.
(feat) Added error messages work for login and register.
(refactor) Remvoed unnecessary class.