This is useful for applications that want to know beforehand if usage of
an API key is supported.

Require API key for submitting suggestions

Also removes limiter exemption

Expose require_api_key_origin in frontend settings

This is useful for applications that want to know beforehand if an API
key is necessary before accessing the running instance.

Upgrade to argos-translate-files v1.0.4

[WIP] Add files translation