FEAT #14324 TIME 2:30 front feature tour

...end/app/administration/home/administration.component.html

.../notification/notifications-administration.component.html

...on/notification/notifications-administration.component.ts

...istration/sendmail/sendmail-administration.component.html

src/frontend/lang/lang-en.ts

src/frontend/lang/lang-fr.ts

src/frontend/lang/lang-nl.ts

src/frontend/service/featureTour.service.ts