Apple Silicon GPU support in Mojo

[fzngagan (Faizaan Gagan)]

Ah, I just realized that Mac support is a recent thing. It’d be lovely to be able to run mac gpus on jupyter lab too. Posted about it:

`has_apple_gpu_accelerator()` is False on jupyter-lab on my Macbook

from sys import has_apple_gpu_accelerator print(has_apple_gpu_accelerator()) gives False on jupyter-lab on my Macbook AIr M4. Is there a way to get it to work in jupyter? Also, can I get syntax highlighting in jupyter for mojo code?