fix: server action error handling

[bryan-robitaille]

Summary | Résumé

fixes: #3580

Ensures that server actions called by client components have handled errors so that the thrown error does not traverse the server/client boundary. New behavior is to send the error back as an object to the client component where it can be thrown or handled.

Also adds the language to some links that were missing it. This helps reduce the number of rewrites the middleware must make when receiving a request that has the missing language parameter.

Found and deleted unused auth code useResetPassword.

Unresolved questions / Out of scope | Questions non résolues ou hors sujet

Out of scope is the error handling of the failed server actions client side.

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[github-actions]

🧪 Review environment

https://2kgdorfbnoqwuekco4yp2xvx240apkff.lambda-url.ca-central-1.on.aws/

[craigzour]

LGTM !

[thiessenp-cds]

Locally tested throwing errors. Works as expected. Nice, LGTM :)

For example, error thrown:

Error handled: