Anonymise the user data when a user is deleted PART 2

[arhimede]

anonymize the identity of the user to be truly deleted and anonym

transform the email of the user in something like:
anonymous1692102521871@dotkernel.com

[arhimede]

connectrd to this PR
https://github.com/dotkernel/frontend/pull/190/files

[arhimede]

Move the string "dotkernel.com" in config, in local.php
$user->setIdentity('anonymous' . date('dmYHis') . '@dotkernel.com');