Verify that the Hugging Face key is not required by default

[philpax]

Ensure that, on a fresh install, the Hugging Face key is not asked for as all of the available models (#20) should be freely downloadable. The HF key should be an available option (if not inherited from the host system) for custom models, but should not be necessary by default.

I'm not actually sure what the current state of this is; it may be easiest to check this in a Windows sandbox to see what it'll do by default in an environment without a HF key.