added a function to notify the status of deployment to backend

[Arjxm]

This pull request includes several changes to the index.js and network.js files to enhance the deployment notification process and improve code consistency by standardizing formatting. The most important changes include adding a new function to send deployment notifications and updating the RPC URL configurations.

Enhancements to deployment notifications:

• Added sendNotificationToBackend function to send deployment notifications to the backend service. This function constructs a payload with relevant deployment data and sends it via a POST request. (index.js)
• Updated the executeDeploy function to send deployment notifications at the start, success, and failure points of the deployment process. This ensures that the backend service is informed about the deployment status at each critical stage. (index.js)

Code formatting improvements:

• Standardized the formatting of the RPC_URL object by removing unnecessary newlines and aligning the URL arrays. (network.js) [1] [2]
• Updated the getLatestBlockNumber function to use consistent indentation and quotation marks, improving code readability. (network.js) [1] [2]