[api] Add missing error translations in french

[HachemJ]

Brief summary of changes

This PR adds missing error translations in french for the api module.

Link(s) to related issue(s)

• See Missing lots of error translations for the message argument given to custom JSON functions #10860 for context (Reference the issue this fixes, if any.)

[lapadulamichael]

LGTM

[HachemJ]

Thanks for the review once again. After taking one last look at the PR, I found a few unintended changes. I will revert them in a final commit.

This is something I have reverted from multiple PRs after Jefferson brought it up Monday during the PR assignment/working session meeting while reviewing one of my PRs. $e->getMessage() contains messages from LORIS exceptions, which are not yet translated. They will be translated in a future PR under the loris namespace. Until then, translating $e->getMessage() directly isn’t appropriate because its value is dynamic and cannot be known ahead of time.

[lapadulamichael]

I see, that makes sense. I will wait for your changes and re-review

[driusan]

I don't think API strings should be translated. (It's debateable if they should be considered code that third party tools depend on the exact response or whether they should be considered as messages that are shown to the user, but in the short term I think it's best to not translate them)

[HachemJ]

#10624

I don't know what to do about this issue then because the error clearly comes from the api module.