FEAT #10734 TIME 3 Admin email configuration

lang/en.json

lang/fr.json

...app/configuration/controllers/ConfigurationController.php

src/app/group/controllers/PrivilegeController.php

...ntend/app/administration/sendmail/sendmail.component.html

...ntend/app/administration/sendmail/sendmail.component.scss

...rontend/app/administration/sendmail/sendmail.component.ts

src/frontend/app/app.module.ts