Pinpoint errors in console output

This idea is actually coming from `shadow-cljs`: we could pinpoint the error character/line in the console output together with sending enough info to `boot-reload`/`boot-figreload` for the same functionality (but different display medium, the browser).

If the error is a Clojure spec error, then [Pinpointer](https://github.com/athos/Pinpointer) could be used as well.