Documentation Request: Provide a guide for handling wallet connection issues

OnchainKit integrates with wallets, but the documentation doesn’t explain how to handle issues like wallet disconnections or failed connections. A simple guide on how to manage these situations would be really useful for developers.
When a wallet connection fails or disconnects, developers might not know how to reconnect or display a helpful error message. This can lead to inconsistent handling of errors and a poor experience for users.

### Proposed Solution
Add a straightforward guide that explains common wallet connection issues, how to manage them, and how to show user-friendly error messages when something goes wrong.