Safari has a behavior (bug) where when you consturct an Image in javascript if you set srcset before properties for `sizes` the brwoser will download the largest image size because it starts to load before you communicate the sizes information.

https://x.com/OliverJAsh/status/1812408504444989588?t=CVHPqBaUiF5-6DBPGERTDA

This change updates the dom fiber implementation to ensure that sizes is added before srcset

Co-authored-by: Jan Kassens <jan@kassens.net>