fix(annuaire): research fix with empty filter

src/app/annuaire/annuaire.component.html

src/app/annuaire/annuaire.component.ts

src/app/annuaire/result-list/result-list.component.html

src/app/annuaire/result-list/result-list.component.scss

src/app/annuaire/result-list/result-list.component.ts

src/app/annuaire/search-bar/search-bar.component.ts