Quay config editor doesn't validate SMTP

Description:

This is an issue found when use new "quay configure editor" deployed by new TNG Operator, when enable Email Server(SMTP configurations), input valid SMTP server, port, credentials, but invalid credentials, the result is validations was passed successfully. Actually Quay configure editor should pop error message to warn users.

Quay image: quay.io/quay/quay:v3.4.0-4

OCP Version: 4.5.0

Quay CR:

apiVersion: quay.redhat.com/v1
kind: QuayRegistry
metadata:
  name: quaydemo

Steps:

1. Login OCP Console
2. Create new OCP Namespace and deploy Quay TNG Operator
3. Open Quay config editor
4. Click "Enable E-mails"
5. Input valid SMTP server ,port,e-mail sender,  invalid credentials
6. Click "Validate Configurations Changes"

Expected Results:

Validation should be failed with error message to warn users

Actual Results:

Validation was passed successfully.