FEAT #11274 TIME 8 begin front diff list indexing

src/frontend/app/app-common.module.ts

src/frontend/app/app.module.ts

src/frontend/app/diffusions/diffusions-list.component.html

src/frontend/app/diffusions/diffusions-list.component.scss

src/frontend/app/diffusions/diffusions-list.component.ts

...app/indexation/indexing-form/indexing-form.component.html

...d/app/indexation/indexing-form/indexing-form.component.ts

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