Bump vega-lite to 5.2.0

[fredZen]

When I oz/view! a chart, I get different results that when I oz/export! them (for instance, grouped bar charts work better in view! than in export!... I am happy to provide screenshots or other details if it helps).

When I manually edit the exported html file to use vega-lite 5.2.0 instead of vega-lite 5.1.0, the differences go away and I get the behaviour I was expecting from my work in view!.

I believe this can be fixed by upgrading vega-lite in package.json (and upgrading package-lock.json accordingly).
I’m happy to make a pull-request if one is welcome.

[metasoarous]

Hi @fredZen. Thanks for reporting this.

This actually isn't a problem with the package.json versions, but rather with the version vars in oz.core, which are referenced in the html output. I failed to update them last time I updated the versions in package.json (which is what the view! interface is compiled against).

I'll try to take care of this next time I cut a release, but in the meantime, please feel free to submit a PR.

Thanks again!