Fix broken tokenizer dependencies in main

[raulraja]

No description provided.

[raulraja]

We now have a situation where there seems to be some duplication in LLModel and ModelType, which are the models the tokenizer use. I don't know if we should mix or keep them entirely separate, but it would be nice to have a common way to refer to models by name. There is also the open question of how the tokenizer library will work for hugging face and local models.

[nomisRev]

@realdavidvega is working on a small improvement to close the gap, we need it in tokenizer if we intend to publish it as a separate library soon but I guess we can rely on that from the main library also. We'd only need a tuple to add the Kind.Chat to it.