Pizza Menu Boards v7

- Two 4K boards with red header bar and white panel.
- Menu 2 now has a Nutella Featured Dessert Pizza card to fill space.
- Update page redesigned: cleaner, no weird grey labels, easier editing.
- Garlic Knots included in appetizers.
- Auto-refresh via version.json polling.

Files:
- menu1.php : Board 1 (Desserts, Pasta, Wings, Salads, Gyros, Appetizers)
- menu2.php : Board 2 (Calzones, Stromboli, Specialty Pizza, Subs, Nutella feature)
- update.php: Admin price editor; updates menu.json and bumps version.json.
- menu.json : All menu data.
- style.css : Shared styling for both boards.
- auto_update.js : Polls version.json every 5 seconds and reloads menus.
- version.json : Simple timestamp for auto-update.