Fix docs for Github Personal Access Token

[haysmike]

Looks like the build is looking for gpr.token instead of gpr.key now.

[Archdoog]

Something broke swift format vs the uniffi generated ferrostar.swift file and I had to re-generate it by:

1. Running build-ios.sh from within the common/ folder.
2. Running swiftformat . from the root folder.

This is fixed in #119, but we could probably get this PR here merged first since it's an easier approve if we wanted to fix that here first.

[ianthetechie]

Yeah, honestly I wish there was a good way to set up CI workflows so that it's just commit on your branch if you forgot to swiftformat :P There's no good solution... even pre-commit hooks won't work here since you may have an old version of swiftformat.

[ianthetechie]

I just quick fixed it to merge both this and #123.