[Validator] refs #11489 add some translations in french
minor #11546 [Validator] refs #11489 add some translations in french (vincentaubert)

This PR was merged into the 2.6-dev branch.

Discussion
----------

[Validator] refs #11489 add some translations in french

| Q             | A
| ------------- | ---
| Fixed tickets | part of #11489
| License       | MIT

fixes some FR translations

Commits
-------

50791c6 [Validator] refs #11489 add some translations in french