[Website]: ES API Console screenshot

### Type of issue

Missing information

### What documentation page is affected

https://www.elastic.co/docs/reference/cloud/cloud-hosted/ec-api-console

### What happened?

👋 howdy, team!

Kindly consider adding a screenshot to this page to help users understand a common gotcha of the JSON going in the box below the URI otherwise request will error.

- Example wrong
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- Example right
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-

### Additional info

_No response_

## Action
added by @georgewallace
- Add a screenshot to the page to provide clarity as to what the user is doing.
- add a sample code block as well for users so they have an idea of what should go in there.