dillon1000/react

[Fizz][Float] `<img>` inside `<picture>` should not preload during SSR (#27346)

img tags inside picture tags should not automatically be preloaded
because usually the img is a fallback. We will consider a more
comprehensive way of preloading picture tags which may require a
technique like using an inline script to construct the image in the
browser but for now we simply omit the preloads to avoid harming load
times by loading fallbacks.