fix: localize dynamic values and controlled labels (#1063)

[youseihuayu-wonderful]

What this PR does / why we need it:

• Format dates, file sizes, and counts using the active interface language.
• Localize known file types, system categories, facet headings, and Subject values.
• Preserve custom metadata, raw filter values, and dataset version identifiers.
• Prevent inherited object properties from being treated as translation keys.

Which issue(s) this PR closes:

• Closes Some dynamic values and search facets are not localized in the Modern Frontend #1063

Special notes for your reviewer:

Frontend-only changes; no backend API or dependency changes.

Suggestions on how to test this:

• Switch between English and Spanish and verify dates, sizes, and counts.
• Add and remove translated facets.
• Verify custom values, including constructor and toString, remain unchanged.
• Verify download sizes update after changing the interface language.

Validation: 121 passing tests across 16 affected specs; Node 22 build,
scoped ESLint, Prettier, and browser component smoke checks passed.
Full backend E2E was not run.

Does this PR introduce a user interface change?

Yes: localized display values and labels; no layout changes.

Is there a release notes or changelog update needed?

Updated CHANGELOG.md under Unreleased / Fixed.

Additional documentation:

None.

[youseihuayu-wonderful]

Hi Chen, I’ve opened a PR for #1063: #1066
The fix covers locale-aware formatting and localized file/facet labels while preserving user-provided metadata and raw filter values. Local validation passed; GitHub CI was still running at my last check.
@ChengShi-1 Could you take a look when you are free?