fix: suppress translation warning in jest

[zhaoyongjie]

SUMMARY

Suppress the "Duplicate translation" warning message in jest processor. test this PR by

npx jest src/explore/controlUtils/standardizedFormData.test.tsx

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

After

Before

TESTING INSTRUCTIONS

CI

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 #20404 (df6a2d0) into master (c79b0d6) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

❗ Current head df6a2d0 differs from pull request most recent head 4efc210. Consider uploading reports for the commit 4efc210 to get more accurate results

@@            Coverage Diff             @@
##           master   #20404      +/-   ##
==========================================
- Coverage   66.72%   66.70%   -0.02%     
==========================================
  Files        1740     1739       -1     
  Lines       65175    65136      -39     
  Branches     6895     6897       +2     
==========================================
- Hits        43486    43452      -34     
+ Misses      19940    19931       -9     
- Partials     1749     1753       +4     

Flag	Coverage Δ
javascript	51.75% <100.00%> (-0.03%)	⬇️

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

Impacted Files	Coverage Δ
...ges/superset-ui-core/src/translation/Translator.ts	100.00% <100.00%> (ø)
...tend/plugins/plugin-chart-echarts/src/controls.tsx	63.33% <0.00%> (-9.40%)	⬇️
...chart-echarts/src/Timeseries/Area/controlPanel.tsx	33.33% <0.00%> (-6.67%)	⬇️
...ts/src/Timeseries/Regular/Scatter/controlPanel.tsx	33.33% <0.00%> (-6.67%)	⬇️
superset/common/query_object_factory.py	87.50% <0.00%> (-5.00%)	⬇️
...chart-echarts/src/Timeseries/Step/controlPanel.tsx	28.57% <0.00%> (-4.77%)	⬇️
...chart-controls/src/shared-controls/dndControls.tsx	26.92% <0.00%> (-1.38%)	⬇️
...charts/src/Timeseries/Regular/Bar/controlPanel.tsx	34.48% <0.00%> (-1.24%)	⬇️
...tend/src/components/Datasource/CollectionTable.tsx	80.53% <0.00%> (-0.34%)	⬇️
superset/db_engine_specs/presto.py	88.70% <0.00%> (-0.33%)	⬇️
... and 35 more

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[zhaoyongjie]

the environment variable WEBPACK_MODE was defined at webpack.config.js. add a new value test to determine if it is in the Jest process.

[stephenLYZ]

LGTM