AVIF images not supported

there's no support in BSS atm for using avif images

Please add .avif to the list of valid image formats so that I can directly use the design pane/ image selector etc.

ATM I have to manually upload to my hosting and just refer those in the code. Not a big issue, but I guess adding a .avif to the list (jpg, svg, webp, png...) of supported format is not complicatd.

Thanks! I am adding this to our todo. The version of Electron which we use doesn't have avif support, but when we upgrade in the near future we'll be able to add it.

That's fine to me, no preview on the stage. But at least allow uploading .avif images so that I can use those for in my sites via image picker (with no preview).

thanks again martin