API Generator support

[jalfort]

Would it be possible to add support for API based generation like FAL.ai, Replicate and OpenAI, basically providing an API key so you could generate images straight into Krita and then use the AI tools to enhance and potentially resend pictures back to Fal.ai or Replicate etc.

Would be a cool concept, Invoke has some interesting support on the paid plan but not in the community version.