Create a core version for Alpine support

[VictorGarritano]

Hello team,

I was trying to install the library in an Alpine Docker image, but the installation failed due to the kaleido dependency, as it does not provide a pre-compiled wheel for Alpine's musl libc architecture.

My understanding is that kaleido is mainly used for plotting features. While these are a great "nice-to-have", they may not be essential for the core Text2SQL logic

Therefore, I would like to propose the creation of a "core" version of Vanna, that does not include the visualization components, which could become an optional extra

Would this make sense?

Thanks in advance!