fix: shared features translation bundle issue

[reneshen0328]

What

Include the proper translation for group shared features package in BUIE CDN bundles.

Issue

The shared features translation has never worked inside BUIE after building CDN bundles.

In buildLocaleAssets.js when we call Webpack.config file we set the line of code to resolve the BUIE default i18n file instead of the properly translated bundled file (this includes all the groupSharedFeature messages) that we created by buildLanguages.js.
In Webpack.config: 'box-ui-elements-locale-data': path.resolve(i18n/${language})

Theoretically once I updated this path to use the already bundled file it should work. However we face another issue where the Babel is throwing error when transpiling @box imported files since the Babel config is different between frontend and BUIE.

Solution

Create mergeTranslations file to replace the frontend i18n/buildLanguageBundles which merges translations from all translationDependencies into the main i18n files without needing the Babel to transpile them again.

Testing Results

See the proper translation:

[coderabbitai]

Walkthrough

This pull request refactors the translation build process by replacing the previous bundled language generation approach with a new merge-based strategy. The buildLanguages.js script is updated to invoke mergeTranslations instead of buildLanguageBundles, and a new mergeTranslations.js script consolidates translations from dependency packages into main i18n files.

Changes

Cohort / File(s)	Summary
Translation Build Refactor scripts/buildLanguages.js, scripts/mergeTranslations.js	Modified build orchestration to replace bundling with translation merging; new script loads languages, iterates dependencies, and merges translations into main i18n files using VM sandbox parsing with fallback error handling and precedence logic for app messages.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~22 minutes

Suggested labels

ready-to-merge

Suggested reviewers

• jpan-box
• tjiang-box
• tjuanitas

Poem

🐰 Whiskers twitching with delight,
Translations merge throughout the night,
No bundles bundled, clean and neat,
Dependencies join, a language treat! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly describes the main change: fixing a shared features translation bundle issue by replacing the bundling strategy with a merge process.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Description check	✅ Passed	The PR description includes required context: what (translation fix), issue (Babel/webpack CDN issues), and solution (mergeTranslations replacement). Testing results with screenshot provided. Follows the general intent of documenting changes effectively.

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✨ Finishing touches

• 📝 Generate docstrings

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