Starting in iOS 15, there's a number of crashes happening in the background with Realm. They don't appear to be due to the file lock in the shared app container, but this may help resolve them either way -- easy to see if the next beta doesn't crash a bunch.
Adds new fastlane lanes:
- `fastlane lint` which checks the linters
- `fastlane autocorrect` which applies the linters which can autocorrect (Rubocop, SwiftFormat)
Adds a build step to the Codegen abstract target which runs SwiftFormat in lint mode, pointing out what it's going to change when run.
Applies SwiftFormat to nearly all code -- exempts a few externally-sourced files and generated code.
Adds code coverage reports to pull requests. Enabling code coverage gathering appears to be about a 25% increase in build time, unfortunately, so just enabling it for the App/Shared targets and doing it in a separate scheme so it doesn't impact local build times.
