Improve french translation

[lionep]

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What changes I've made

Improve french translation

Why I've made these changes

I've saw some mistake (like Orders != Ordres for this context).

How I've tested these changes

Rebuilt the docker image, and check usage of translations

Checklist

• I have read the contributing guidelines.
• My code follows the coding standards of the project.
• I have tested my changes, and they work as expected.
• I understand that this PR will be closed if I do not follow the contributor guidelines and if this PR template is left unedited.

I have read the CLA Document and I hereby sign the CLA.

[github-actions]

Thank you for your submission, we really appreciate it. Like many open-source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution. You can sign the CLA by just posting a Pull Request Comment same as the below format.

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I have read the CLA Document and I hereby sign the CLA

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Lionel Penaud seems not to be a GitHub user. You need a GitHub account to be able to sign the CLA. If you have already a GitHub account, please add the email address used for this commit to your account.
_{You can retrigger this bot by commenting recheck in this Pull Request. Posted by the CLA Assistant Lite bot.}

[lionep]

I have read the CLA Document and I hereby sign the CLA

[daveearley]

Thank you!