fix: Use current domain in share URL instead of static config.domain

- Share URL now uses window.location.hostname to support both hoerdle.de and hördle.de
- Protocol is automatically detected from window.location.protocol
- Fixes issue where share URL always used hoerdle.de even when accessed via hördle.de

components/Game.tsx

@@ -274,7 +274,10 @@ export default function Game({ dailyPuzzle, genre = null, isSpecial = false, max
         const bonusStar = (hasWon && gameState.yearGuessed && dailyPuzzle.releaseYear && gameState.scoreBreakdown.some(item => item.reason === 'Bonus: Correct Year')) ? '⭐' : '';
         const genreText = genre ? `${isSpecial ? t('special') : t('genre')}: ${genre}\n` : '';
 
-        let shareUrl = `https://${config.domain}`;
+        // Use current domain from window.location to support both hoerdle.de and hördle.de
+        const currentHost = typeof window !== 'undefined' ? window.location.hostname : config.domain;
+        const protocol = typeof window !== 'undefined' ? window.location.protocol : 'https:';
+        let shareUrl = `${protocol}//${currentHost}`;
         // Add locale prefix if not default (en)
         if (locale !== 'en') {
             shareUrl += `/${locale}`;