Improve Native Node Import

@john would be good to make the nodes import more dynamic and put the comfystream nodes under a `Comfystream` categroy in Comfystream now we have the [docs](https://docs.comfystream.org/technical/custom-nodes/comfystream-nodes). I created a quick draft to get this started [https://github.com/livepeer/comfystream/pull/143](https://github.com/livepeer/comfystream/pull/143).