grpc_peer_handle for serializing inference state using wrong numpy type

[risingsunomi]

Currently, there is a function that detects if running Apple based systems or not. It then sets an mx variable that points to either mlx or numpy depending on your system.

This causes issues when adding more than one node to the network and passing the inference state.

https://github.com/exo-explore/exo/blob/main/exo/networking/grpc/grpc_peer_handle.py#L203

Current fix suggestion is by adding a boolean IS_APPLE to check and later assigning a variable mx_array_type the proper type

https://github.com/risingsunomi/exo-pt/blob/grpc-fix-jan242025/exo/networking/grpc/grpc_peer_handle.py#L17-L22

https://github.com/risingsunomi/exo-pt/blob/grpc-fix-jan242025/exo/networking/grpc/grpc_peer_handle.py#L206-L211

My fork has too many changes to do a pull request.

Thank you and appreciate all your work on this.