Error reporting

[fauno]

It'd be great to track JS errors somewhere. Sometimes I need to debug an issue and the errors reported on journald are too limited, and awkward to parse.

I don't have a preference for platform though, and most are paid anyway. We've used Sentry for another project, and at Sutty what we did is emulate the Airbrake API to report backtraces as private issues on our Gitlab repo.