Base Messenger docs improvement

[mehedihassan0]

What would you like us to improve?
Create a comprehensive tutorial demonstrating cross-chain interaction between Layer 1 (L1) and Layer 2 (L2) Ethereum networks using Base Messenger. This tutorial should include detailed explanations, code examples, and step-by-step instructions for setting up, deploying, and executing cross-chain transactions.

How important it is?
This help users better understand and utilize the Cross-chain Interaction feature.
Improving the user experience for blockchain developers

[wbnns]

@mehedihassan0

Thanks for taking the time to open this issue! We've added this to our backlog, pending to be reviewed.