neglected in #4911:
- bytesTotal can be null (also handle that bug in runtime)
- progress is not a property on the progress object
- use `satisfies` instead of `as`
- add todo about broken `throttle` implementation
- in emitSocketProgress, progressData should not have the FileProgress type, as it is a completely different type (it comes from companion)
Co-authored-by: Mikael Finstad <finstaden@gmail.com>
Co-authored-by: Nick Rutten <2504906+nickrttn@users.noreply.github.com>
Co-authored-by: Murderlon <merlijn@soverin.net>
Co-authored-by: Artur Paikin <artur@arturpaikin.com>
