fix(annuaire): fix flash and add loader

src/app/annuaire/annuaire.component.html

src/app/annuaire/annuaire.component.scss

src/app/annuaire/annuaire.component.ts

src/app/annuaire/models/searchQuery.model.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.html

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

src/app/app.component.scss

src/app/footer/footer.component.html

src/app/footer/footer.component.scss

src/app/form/form-view/form-view.component.scss

...rientation-form-view/orientation-form-view.component.scss

src/app/login/login.component.html

src/app/login/login.component.scss

src/app/reset-password/reset-password.component.html

src/app/reset-password/reset-password.component.scss

src/app/services/routerListener.service.ts