Modify localization strings for carousel flippers

[compulim]

Related to #4557.

Changelog Entry

Fixed

• Fixes #4557. Flipper buttons in carousels and suggested actions is now renamed to "next/previous" from "left/right", by @compulim, in PR #4646

Description

This is a 2-part fix. This PR will add/change loc strings for the flipper buttons. The next PR will b ump the package.

Specific Changes

• Updated en-US.json/yue.json
  • Renamed CAROUSEL_FLIPPER_LEFT_ALT to CAROUSEL_FLIPPER_PREVIOUS_ALT
  • Renamed CAROUSEL_FLIPPER_RIGHT_ALT to CAROUSEL_FLIPPER_NEXT_ALT
  • Added SUGGESTED_ACTIONS_FLIPPER_NEXT_ALT/SUGGESTED_ACTIONS_FLIPPER_PREVIOUS_ALT
  • "left" is now "previous", "right" is now "next"

• I have added tests and executed them locally
• I have updated CHANGELOG.md
• I have updated documentation

Review Checklist

This section is for contributors to review your work.

• Accessibility reviewed (tab order, content readability, alt text, color contrast)
• Browser and platform compatibilities reviewed
• CSS styles reviewed (minimal rules, no z-index)
• Documents reviewed (docs, samples, live demo)
• Internationalization reviewed (strings, unit formatting)
• package.json and package-lock.json reviewed
• Security reviewed (no data URIs, check for nonce leak)
• Tests reviewed (coverage, legitimacy)

[beyackle2]

Read through it and it looks good.