dseditor

[My fork](https://github.com/dseditor/krita-ai-diffusion/tree/main) can use NF4-dev, and HYDit but it only uses the method of checking the flux1-dev-bnb-nf4.safetensors file name and HYDit can't be working on upscale, not the real solution,...

Thanks for Acly's detailed review. I'll try to address these issues. I think we might keep a threshold setting to accommodate models that will use MagCache in the future, but...