method set_img_placeholder is not working. via.placeholder.com either moved domains or shut down.

[mwd1993]

We can temporarily use: https://placehold.co/

But realistically, it's 2025, we can get chat gpt/deepseek to write a function to generate placeholders within QuykHtml itself.
This may be the final solution to solve issues of relying on third party domains/websites for placeholder images.