add sd-webui-prevent-interruption

[light-and-ray]

Info

A switch in page footer to prevent user from accidental interrupting

https://github.com/light-and-ray/sd-webui-prevent-interruption

Checklist:

• [x] I have read the Readme.md
• [x] The description is written in English.
• [x] The index.json and extension_template.json have not been modified.
• [x] The entry is placed in the extensions directory with the .json file extension.

[light-and-ray]

Hmm, there is no script_callback for moment when shared.demo is initialized, but not launched, so it's not possible for extensions to register their own python on ui loaded callbacks. (block.load(...) doesn't work in my code, block must be shared.demo) Should I add them and make PR into sd-webui?

P.s. btw even with this callback on a button this doesn't work for some reason. Switch elements are very hard

[w-e-w]

lol your screenshot make me thought that the button will appear at the center right of the footer but instead it appears on the far right corner because my theme there's a icon there and I just not noticed your button for a long while I was very confused and thought that you extension was broken somehow

[light-and-ray]

Ah I see, it because I squashed window to make an compact screenshot