FEAT #12510 TIME 2 filling rate with new contact + remove useless file

...ntreprise/class/class_indexing_searching_app_Abstract.php

apps/maarch_entreprise/indexing_searching/details.php

modules/templates/datasources/letterbox_attachment.php

modules/templates/xml/datasources.xml

rest/index.php

sql/data_fr.sql

src/app/contact/controllers/ContactController.php

src/app/contact/models/ContactCustomFieldModel.php

src/core/controllers/AutoCompleteController.php

...on/contact/contacts-filling-administration.component.html

...tion/contact/contacts-filling-administration.component.ts

src/frontend/app/contact/list/contacts-list.component.html

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

src/frontend/lang/lang-en.ts

src/frontend/lang/lang-fr.ts

src/frontend/lang/lang-nl.ts

test/unitTests/app/contact/ContactControllerTest.php