fix(plugin-chart-echarts): tooltip of big number truncated at then bottom

[stephenLYZ]

SUMMARY

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

before

after

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 #20029 (c045916) into master (99f1f9e) will decrease coverage by 0.20%.
The diff coverage is 75.57%.

❗ Current head c045916 differs from pull request most recent head ac766a2. Consider uploading reports for the commit ac766a2 to get more accurate results

@@            Coverage Diff             @@
##           master   #20029      +/-   ##
==========================================
- Coverage   66.53%   66.33%   -0.21%     
==========================================
  Files        1714     1713       -1     
  Lines       65043    64083     -960     
  Branches     6723     6734      +11     
==========================================
- Hits        43278    42509     -769     
+ Misses      20054    19863     -191     
  Partials     1711     1711              

Flag	Coverage Δ
javascript	51.27% <60.89%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
...perset-ui-core/src/chart/components/SuperChart.tsx	100.00% <ø> (ø)
...ugins/legacy-plugin-chart-calendar/src/Calendar.js	0.00% <ø> (ø)
...legacy-plugin-chart-calendar/src/ReactCalendar.jsx	0.00% <0.00%> (ø)
...egacy-plugin-chart-world-map/src/ReactWorldMap.jsx	0.00% <0.00%> (ø)
...gins/legacy-plugin-chart-world-map/src/WorldMap.js	0.00% <ø> (ø)
...acy-preset-chart-deckgl/src/components/Tooltip.tsx	0.00% <0.00%> (ø)
...BigNumber/BigNumberWithTrendline/transformProps.ts	46.96% <ø> (ø)
...s/plugin-chart-pivot-table/src/PivotTableChart.tsx	0.00% <0.00%> (ø)
...ns/plugin-chart-word-cloud/src/chart/WordCloud.tsx	0.00% <0.00%> (ø)
...preset-chart-xy/src/components/BoxPlot/BoxPlot.tsx	0.00% <0.00%> (ø)
... and 88 more

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[zhaoyongjie]

LGTM! Thanks for the fix.