Add max batch size check

[azahed98]

This PR raises a ValueError should the user specify a max size above what we support for the model

Things to change in the future:

1. The default batch size is 32, which is above max batch size for code llamas. They need a different default batch size.
2. We need to instead store min, max, and default batch size for each model in mongo, which can then be upaded separately and used in the CLI and finetune processor

[justusc]

@clam004 put in some changes that allow the user to confirm changes to the input. I think for max batch size we can clamp it and set adjusted_inputs = True as we did with other parameters.