Self-contained AI

Having just fought a hard and long battle to finally have a normally running ComfyUI be recognized by the plugin, I can't help but notice how much more tedious the installation and run process is compared to [krita-ai-diffusion](https://github.com/Acly/krita-ai-diffusion).

I understand wanting to use a global version of the AI, but having at least an option to have ComfyUI (or A1111) fully self-contained within Auto-Photoshop-StableDiffusion-Plugin would make the setup a lot easier, also for those who don't have full system control or wish to use it for only this one purpose.

Thank you for taking it into consideration!