Update remaining AppKit Lab URL in Flutter early access docs

Co-Authored-By: [email protected] <[email protected]>

Author: devin-ai-integration[bot]

docs/walletkit/flutter/early-access/chain-abstraction.mdx

@@ -236,7 +236,7 @@ Best way to test Chain Abstraction is to use our Sample wallet.
 - [Sample Wallet for iOS](https://testflight.apple.com/join/Uv0XoBuD)
 - [Sample Wallet for Android](https://appdistribution.firebase.dev/i/2b8b3dce9e2831cd)
 
-You can also use the [AppKit laboratory](https://appkit-lab.reown.com/library/wagmi/) and try sending [USDC/USDT](../../../walletkit/features/early-access/chain-abstraction.mdx#what-are-the-supported-tokens-and-networks) with any chain abstraction-supported wallet. 
+You can also use the [AppKit laboratory](https://appkit-lab.reown.com/appkit/?name=wagmi) and try sending [USDC/USDT](../../../walletkit/features/early-access/chain-abstraction.mdx#what-are-the-supported-tokens-and-networks) with any chain abstraction-supported wallet. 
 
 <video controls width="100%" height="100%" style={{ borderRadius: '10px' }}>
   <source src="/assets/chain-abstraction-demo.mp4" type="video/mp4" />