Backoffice in Angular 11 - Develop multiple languages

It remains to complete a backoffice and show these changes on the front. The backoffice is built in Angular 11. Basically, the idea is to allow the backoffice to manage more languages ​​that will have to be presented on the front. For example, we have the website: www.domain.com/pt/page. The idea is to be able to create 2 more languages (English and French), so, it wil be: www.domain.com/en/page or www.domain.com/fr/page. Of course, the texts in the front should be in English or in French. And these texts should be configured in the backoffice. We await applications. Thanks.