Migrate IntersectionObserverEntry to KDL

[Bashamega]

Also, I added full support for interface removals.
Everything now should be optionally nested except for the signature, because the emitter throws an error otherwise. So I had to add special handling for it in the converter

[github-actions]

Thanks for the PR!

This section of the codebase is owned by @saschanaz - if they write a comment saying "LGTM" then it will be merged.

[saschanaz]

Also, I added full support for interface removals. Everything now should be optionally nested except for the signature, because the emitter throws an error otherwise. So I had to add special handling for it in the converter

Can you eleborate, like what kind of error? Working around an error is only good when we know what's happening there.

[Bashamega]

Also, I added full support for interface removals. Everything now should be optionally nested except for the signature, because the emitter throws an error otherwise. So I had to add special handling for it in the converter

Can you eleborate, like what kind of error? Working around an error is only good when we know what's happening there.

Scratch that, I have updated the syntax