Adding support for llm-ls

[McPatate]

Hi Zed team, super cool to hear you open sourced Zed!

I work on https://github.com/huggingface/llm-ls & our extensions at Hugging Face and was wondering what your vision for embedding AI into Zed was.

Are you going towards the plugin/extension route where people contribute their own or do you have an opinionated list of pre-installed extensions?

Let me know if you'd be interested in collaborating on this topic, I definitely am! 🦀