Move the `Config` object to the top of every client page, before the client commands.

[RanVaknin]

Describe the issue

In every client page, customers are forced to scroll all the way to the bottom of the page to find the config object that every client takes.

This makes it both hard to work with, and most importantly hard to find.

Action item: move config structure to the very top of the page.

Links

https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/s3/