Extract no longer prints in the frontend

[jbachurski]

Thanks for the amazing project!
I was just experimenting with egglog, and may have missed the exact change, but it looks like from the moment #176 was merged the command extract (or rather its new name, query-extract) no longer prints to the standard output.
To reproduce, run any example with query-extract - like https://egraphs-good.github.io/egglog/?example=eqsolve. No output with terms/costs is printed.
I think the output is printed to the browser console instead, but that's somewhat inconvenient to use. Is there a workaround?

[yihozhang]

I think it makes sense to print the extracted program to stdout, so we should probably add this back? cc @oflatt

[oflatt]

Yes it should print to stdout! Sorry about that

[oflatt]

Fixed by #183