Externalize Hero release badge text for i18n

[coderabbitai]

Summary

Externalize the Hero release badge text currently hardcoded in landing-page/src/components/Hero.tsx (for example, v1.0.4 IS OUT NOW) into the landing page's i18n resource files.

Rationale

The badge is user-visible content and should be localized consistently with the rest of the landing page.

Affected area

• landing-page/src/components/Hero.tsx
• The relevant locale/resource files used by the landing page

Required changes

• Add an appropriately named translation key for the release badge to every supported locale resource.
• Render that key from Hero using the project's established i18n mechanism.
• Preserve the current displayed English text.

Acceptance criteria

• Hero no longer contains the release badge text as a hardcoded JSX string.
• All relevant locale resources contain the new key.
• The badge continues to display v1.0.4 IS OUT NOW in the default English locale.

Requested by: @kpj2006

Backlinks:

• PR: Updated all occurrences of v1.0.3 to v1.0.4 across all framework CDN … #194
• Review discussion: Updated all occurrences of v1.0.3 to v1.0.4 across all framework CDN … #194 (comment)