Verify all appsettings are configured in IaC

[TTA777]

Currently at least LoginLimiter__TimeOutPeriodInSeconds is not configured, others might be as well

[jonasanker]

This might be intended. When no explicit configuration is set, it defaults back to the contents of the appsettings.json file.

[TTA777]

Well, in this particular case, we have configured the two other options of the limiter, so it seems unintentional. Considering the issue we had with a signing key recently, I think it's worth checking up on it at least