[Validator] Completed French translations

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | n/a
| Fixed tickets | -
| License       | MIT
| Doc PR        | -
minor #10746 [Validator] Completed French translations (mweimerskirch)

This PR was merged into the 2.4 branch.

Discussion
----------

[Validator] Completed French translations

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | n/a
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Commits
-------

dcc34c1 [Validator] Completed French translations