Add live game fetch commentary from AI

[jalpp]

No description provided.

[nicvagn]

Hey,

So I can work on getting a fen from the api first.

Then, I may need some help on the chessxplain end

[jalpp]

sure! so the task is to somehow get the fen into a function lets say tvfetch which frontend file tvfront can call and each should be able to parse the FENs and do something on it