v1.2.1 - Astro Actions Contact Form + SEO & TypeScript Fixes

Bump to Astro 6 and Refactor Contact page on:

• Main
• i18n-routing-helper: https://github.com/Scorpio3310/astro-i18n-starter/tree/feat/i18n-routing-helper

Migrated the contact form from the /api/contact endpoint to Astro Actions with shared Zod validation, localized error messages, and honeypot spam protection. Also added hreflang SEO tags, fixed missing/broken translations, and resolved all TypeScript errors (astro check passes) on Astro 6.4.