Show the Git conflict GUI when sharing a conflicted file

[haacked]

I think a really common and useful scenario for Teletype is asking someone to help resolve a merge conflict. Merge conflicts can get really gnarly and pulling in the person who made the commit that your commit conflicts with is a neat way to work together to resolve it.

I tried this out in Teletype. Here's the conflicted file and the GUI I see.

Here's what the collaborator sees.

I understand that the Portal only shares the context of the file we're collaborating on. But it might not be too hard to send over a bit more context so that Atom knows to render the conflict GUI. That would make collaborating on this scenario a lot nicer.