[JS] Enable NumberFormat v3

[bsmth]

Acceptance Criteria

• The listed features are documented sufficiently on MDN
• BCD is updated
• Interactive example and data repos are updated if appropriate
• The content has been reviewed as needed

For folks helping with Firefox related documentation

• Set bugs to dev-doc-complete
• Add entry to Firefox release notes if feature is enabled in release
• Add entry to Firefox experimental features page if feature is not yet enabled in release

Features to document

Related Gecko bugs

• https://bugzilla.mozilla.org/show_bug.cgi?id=1795756

Other

• Check content open issues to see if any pertain to the subject matter. If there are any that can be closed because of the work, do so. If there are any that can be fixed relatively quickly because of the knowledge from completing this issue and you have time, feel free to go ahead and fix them.
• Check if glossary updates are required for the feature you're documenting - whether an existing term needs to be updated or a new term should be added.
• Check if BCD update means that content pages need to have experimental markup removed or deprecated markup added (front matter tags and macros).

[Elchi3]

Would be great to get a review on mdn/browser-compat-data#20262

[hamishwillee]

I'm still checking the status of this. But minimally

• Add exceptions sections
• PluralRules constructor
  • These probably : [[MinimumIntegerDigits]], [[MinimumFractionDigits]], [[MaximumFractionDigits]], [[MinimumSignificantDigits]], [[MaximumSignificantDigits]], [[RoundingType]],
  • These in the new proposal and no docs, maybe no BCD [[RoundingMode]], [[RoundingIncrement]], [[TrailingZeroDisplay]]
  • PluralRules.resolvedOptions() this takes some of the new options. Might have a BCD option.
  • PluralRules.selectRange() - new and documented. But need to sanity check. Perhaps with live example or interactive example:

  console.log("Available: resolvedOptions().useGrouping === 'auto'");
}
else {
   console.log("Not available: resolvedOptions().useGrouping === 'auto'"); 
}

Status:

• Docs
  • Intl.NumberFormat. v3 fixes #28023 - resolvedOptions() fixes, remove experimental inline markup
  • FF116 Intl.PluralRules - NumFormat v3 #28097
• BCD
  • Update Intl.NumberFormat v3 data browser-compat-data#20262
  • FF116 Intl NumberFormat and PluralRules NumberFormat v3 updates browser-compat-data#20371
• Release notes - FF116 Relnote: NumberFormat v3 proposal #28164
• dev-doc-complete