Wrong mail template and missing doc for admin emailing of database backups

Signed-off-by: emanuele <emanuele45@gmail.com>
array_keys should be done when getBasicThemeInfos is called, not inside it

Signed-off-by: emanuele <emanuele45@gmail.com>
Logs and email admins on theme editing. But not always. Done before validating php code because even validation means the code is executed

Signed-off-by: emanuele <emanuele45@gmail.com>