Revive the "send email to new users" toggle for the user form

apps/provisioning_api/lib/Controller/UsersController.php

apps/settings/appinfo/routes.php

apps/settings/js/vue-0.js

apps/settings/js/vue-0.js.map

apps/settings/js/vue-5.js

apps/settings/js/vue-5.js.map

apps/settings/js/vue-7.js

apps/settings/js/vue-7.js.map

apps/settings/js/vue-settings-admin-security.js

apps/settings/js/vue-settings-admin-security.js.map

apps/settings/js/vue-settings-apps-users-management.js

apps/settings/js/vue-settings-apps-users-management.js.map

apps/settings/js/vue-settings-personal-security.js

apps/settings/js/vue-settings-personal-security.js.map

apps/settings/lib/Controller/UsersController.php

apps/settings/src/views/Users.vue