FEAT #13983 TIME 14:00 start collabora online integration

apps/maarch_entreprise/xml/documentEditorsConfig.xml

rest/index.php

...ntentManagement/controllers/CollaboraOnlineController.php

...ontentManagement/controllers/DocumentEditorController.php

src/core/controllers/AuthenticationController.php

src/core/models/CurlModel.php

src/frontend/app/viewer/document-viewer.component.html

src/frontend/app/viewer/document-viewer.component.ts

src/frontend/app/viewer/document-viewer.module.ts

src/frontend/css/maarch-material.css

src/frontend/lang/lang-en.ts

src/frontend/lang/lang-fr.ts

...s/collabora-online/collabora-online-viewer.component.html

...s/collabora-online/collabora-online-viewer.component.scss

...ins/collabora-online/collabora-online-viewer.component.ts