Doc Feedback: Tutorials should be updated to work with VSCode Editor

In this tutorial[1], integration part is still guided through Integration Studio which is no longer we propose to customers/prospects. Please update documentation to build integration part with VSCode plugin and expose it as an API in APIM.

[1] https://apim.docs.wso2.com/en/latest/tutorials/develop-an-integration-with-a-managed-api/#step-2-develop-the-integration-service