fix(smart-wallet): Improve error message for connection failures (#4343)

## Problem solved

Short description of the bug fixed or feature added

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## PR-Codex overview
This PR improves error handling in smart wallet connection by providing a more informative error message when encountering an RPC error.

### Detailed summary
- Improved error message when smart wallet connection fails due to RPC error
- Added dynamic error message including original error message or "unknown error"

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.changeset/polite-months-hang.md

@@ -0,0 +1,5 @@
+---
+"thirdweb": patch
+---
+
+Better error message when smart wallet connection fails due to rpc error

packages/thirdweb/src/wallets/smart/index.ts

@@ -133,7 +133,7 @@ export async function connectSmartWallet(
     .then((address) => address)
     .catch((err) => {
       throw new Error(
-        `Failed to get account address with factory contract ${factoryContract.address} on chain ID ${chain.id}. Are you on the right chain?`,
+        `Failed to get account address with factory contract ${factoryContract.address} on chain ID ${chain.id}: ${err?.message || "unknown error"}`,
         { cause: err },
       );
     });