Merge branch 'develop' of labs.maarch.org:maarch/MaarchCourrier into develop

rest/index.php

src/app/group/controllers/PrivilegeController.php

src/app/group/models/PrivilegeModelAbstract.php

...app/indexingModel/controllers/IndexingModelController.php

src/app/resource/controllers/ResController.php

src/app/resource/controllers/ResourceListController.php

...tachments/attachments-page/attachment-page.component.html

...attachments/attachments-page/attachment-page.component.ts

...ntend/app/indexation/field-list/field-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

src/frontend/plugins/modal/alert.component.html

src/frontend/plugins/modal/alert.component.scss

src/frontend/plugins/modal/confirm.component.scss