[Lens] Fix area percentage gaps with zero fitting function

[dej611]

Summary

Fixes #93648

Alternative to #93812 as discussed with @nickofthyme .

I've implemented the alternative solution using the fit="zero" solution, but I still see some gaps in the middle of the stacked area.

Between the 2021-24-02 00:00 and 12:00 there's still a gap not filled with the fitting function. I've used the logs sample dataset, but if the specific data is required let me know.

Checklist

Delete any items that are not applicable to this PR.

• Any text added follows EUI's writing guidelines, uses sentence case text and includes i18n support
• Documentation was added for features that require explanation or tutorials
• Unit or functional tests were updated or added to match the most common scenarios
• Any UI touched in this PR is usable by keyboard only (learn more about keyboard accessibility)
• Any UI touched in this PR does not create any new axe failures (run axe in browser: FF, Chrome)
• If a plugin configuration key changed, check if it needs to be allowlisted in the cloud and added to the docker list
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• This was checked for cross-browser compatibility

For maintainers

• This was checked for breaking API changes and was labeled appropriately

[nickofthyme]

code LGTM

[dej611]

@elasticmachine merge upstream

[nickofthyme]

Gaps will be fixed in a patched version of elastic charts with elastic/elastic-charts#1067

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[dej611]

@elasticmachine merge upstream

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 2e0b867
• Storybooks Preview
• Documentation Changes

Metrics [docs]

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
lens	921.8KB	921.9KB	+110.0B

History

• 💚 Build #112143 succeeded 3cd9d8c
• 💔 Build #112076 failed 701e3da

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[flash1293]

LGTM, works as expected

[kibanamachine]

💚 Backport successful

✅ 7.x / #94452

Successful backport PRs will be merged automatically after passing CI.

[nickofthyme]

@flash1293 and @dej611 Since this issue has likely been in past kibana releases depending on when this regression was caused in chromium (https://bugs.chromium.org/p/chromium/issues/detail?id=1163912). What do you guys think about merging this patch fix (elastic/elastic-charts#1067) into 7.12? Should we wait for 7.12.1?

cc: @markov00

[flash1293]

It's fine for 7.12 for me cc @timroes

[nickofthyme]

Ok, merged here #94698