[BUG] MFA without email server config

[osmontero]

Describe the bug
Users should not be able to enable MFA without configuring an email server and verifying their email address.

Expected behavior
Users must verify their email address by clicking a verification link or entering a verification code sent by email. After this, they can enable multi-factor authentication (MFA) without risk of being locked out because it is not properly configured or their email address is incorrect.

Environment

• OS: Ubuntu 22.04
• Version v10.1.n

[jdieguez89]

@osmontero Good catch, @c3s4rfred @mjabascal10; let's implement a configuration check; when a configuration is saved, we need to check if all the prerequisites are met; for example, to save the TFA, the email configuration must be set. This will allow us to add more configurations that depend on each other. Let's discuss this.