Implement navigation confirmation on game exit

[ryanmio]

This commit introduces a feature that prompts the user for confirmation when they attempt to navigate away from an ongoing game session. The following changes have been made:

1. Added a new state variable intendedRoute in index.js to store the destination route when a user tries to navigate away during a game.

2. Modified the promptEndGame function in index.js to accept a route parameter and set the intendedRoute state, which triggers the display of the EndGameModal.

3. Updated the confirmEndGame function in index.js to perform navigation to the intendedRoute after the game state has been reset and the modal is closed.

4. Ensured that the cancelEndGame function in index.js clears the intendedRoute state and closes the modal without navigating away, allowing the user to continue the game.

5. Passed the updated promptEndGame function as a prop to the OptionsMenu component and modified the navigation-related event handlers within OptionsMenu.js to call promptEndGame with the intended route.

6. Ensured proper import and usage of the useRouter hook from next/router in both index.js and OptionsMenu.js for programmatic navigation.

These changes enhance the user experience by preventing accidental loss of game progress and providing a clear and user-friendly way to confirm navigation actions during gameplay.

[netlify[bot]]

✅ Deploy Preview for decode-me ready!

Name	Link
🔨 Latest commit	d2f622d7743c7612638c79b3f661d2294b9ea3e3
🔍 Latest deploy log	https://app.netlify.com/sites/decode-me/deploys/65b7ab121f38ee00089e9450
😎 Deploy Preview	https://deploy-preview-70--decode-me.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.