FEAT #11266 TIME 1:30 new autocomplete plugin

.../administration/group/group-administration.component.html

...pp/administration/group/group-administration.component.ts

...ion/group/indexing/indexing-administration.component.scss

src/frontend/lang/lang-en.ts

src/frontend/lang/lang-fr.ts

src/frontend/lang/lang-nl.ts

...frontend/plugins/autocomplete/autocomplete.component.html

...frontend/plugins/autocomplete/autocomplete.component.scss

src/frontend/plugins/autocomplete/autocomplete.component.ts