🎮 Full Controller Support & Steam Deck Update

This update makes Relax Scramble a great experience on a gamepad and on Steam Deck.

🎮 Full controller support - navigate menus, play, and use hints entirely with a gamepad. No mouse needed.

🕹️ Improved controller recognition with correct on-screen button glyphs (Xbox / PlayStation / Nintendo / Steam Deck).

🟦 Steam Deck ready - launches fullscreen at native resolution and is fully playable with the Deck's built-in controls.

🌍 Automatic language - the game now starts in your Steam client language on first launch.

✨ Steam Rich Presence - your friends can see your current score.

🐛 Fixes & polish - correct word validation in all languages, gamepad-operable hint popup, and smoother cursor movement.