fix(plugin-chart-echarts): reorder totals and support multimetric sort

[villebro]

SUMMARY

When using the multiseries sort on generic x-axis, the totals are not sorted, causing them to display on the wrong bars. In addition, it was not possible to sort by the total bar height if there were multiple metrics. This PR fixes both issues.

AFTER

When there are two metrics, the multiseries sort control is now displayed. In addition, the totals are displayed on the correct rows:

total-after.mp4

BEFORE

Previously, it wasn't possible to sort by the total if there were multiple metrics (notice that one would commonly want to display NY before TX and PA before OH):

In addition, when using the multiseries sort control, the totals would be displayed on the original bars, as they didn't get reordered along with the chart data (notice that the last bar shows 37.1 M births, despite the total of the series being 5.62M):

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #23675 (a6c7a83) into master (47fd732) will decrease coverage by 0.01%.
The diff coverage is 38.88%.

❗ Current head a6c7a83 differs from pull request most recent head 6b01df3. Consider uploading reports for the commit 6b01df3 to get more accurate results

@@            Coverage Diff             @@
##           master   #23675      +/-   ##
==========================================
- Coverage   66.40%   66.39%   -0.01%     
==========================================
  Files        1922     1922              
  Lines       74042    74048       +6     
  Branches     8102     8104       +2     
==========================================
+ Hits        49166    49167       +1     
- Misses      22805    22809       +4     
- Partials     2071     2072       +1     

Flag	Coverage Δ
javascript	54.12% <38.88%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...rt-controls/src/shared-controls/customControls.tsx	22.58% <0.00%> (-1.56%)	⬇️
...hart-echarts/src/MixedTimeseries/transformProps.ts	0.00% <0.00%> (ø)
...gin-chart-echarts/src/Timeseries/transformProps.ts	56.75% <25.00%> (-0.52%)	⬇️
...d/plugins/plugin-chart-echarts/src/utils/series.ts	85.71% <75.00%> (-0.92%)	⬇️

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[kgabryje]

LGTM with tiny naming nit