[Lens] fix dual axis bar overlap

[nickofthyme]

Summary

Fixes #72889

Upgrades @elastic/charts to 19.8.2 which includes only this fix (elastic/elastic-charts@v19.8.1...v19.8.2)

Before

After

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 2edb8dc

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@elasticmachine merge upstream

[nickofthyme]

@flash1293 or @wylieconlon could yo verify this fix?

[markov00]

LGTM, tested locally and I can now see correctly a clustered bar chart with a dual-axis.

It's just a bit weird that the title says: Stacked bar chart but that seems to be another story: @flash1293 @wylieconlon is that a known bug?

[flash1293]

Stacked bar chart should be stacked indeed, maybe we went too far with the unstacking. I will look into this.

[flash1293]

I checked on current master and it seems this case is working fine there:

@nickofthyme Could you check whether this might be an elastic-charts problem?

[flash1293]

Wait, I misunderstood your screenshot, @markov00 - stacking just means stacking the "break down by" dimension you don't have. So while this might be a little confusing, it's still the right behavior when you got two separate axes IMHO. I'll test the PR real quick and approve.

[flash1293]

Tested a few cases in Chrome and works as expected. Please make sure to get the same update into master (if you haven't done so already).

[nickofthyme]

This fix came after a breaking change in @elastic/charts so we are working with eui to upgrade, which will include this fix.