Connection with first admin account should not require email validation

[Gredin67]

Describe the bug
If email validation is activated for new accounts, it asks for email validation of the first admin account, although the account has already been created and login was previously successfull. In my case I do not receive the validation email on my mailbox.

To Reproduce
Steps to reproduce the behavior:

1. Install fab-manager
2. define admin@domain.tld as first admin account
3. Log in first admin account with password successfully
4. Activate email validation for new accounts
5. Log in with first admin account requires email validation
   if the mail server of fab-manager is wrongly configured or the admin mail box does not work, we are unable to connect to fab-manager webadmin.

Expected behavior
The first admin account which has already been activated should not require email validation, or should be created with email_validated_boolean=true
At least we should be able to deactivate email validation from the CLI.
Maybe admin accounts should not require validation.

Server (please complete the following information):

• OS: Yunohost Debian 11
• Kernel: 5.10.0-32-cloud-amd64 #1 SMP Debian 5.10.223-1 (2024-08-10) x86_64 GNU/Linux
• Fab-manager version 6.3.31

Browser (please complete the following information):

• Name: Firefox
• Version: 129.0.2