add a Code component for dynamic code content

**Is your feature request related to a problem? Please describe.**
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add an "Code" component for when we're looking to render content imported, fetched, or otherwise rendered programmatically -- outside of the usual fenced code blocks

https://next-docs.amplify.aws/react/reference/amplify_outputs/#schema-reference

**Describe the solution you'd like**
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```mdx

{JSON.stringify(someObject, null, 2)}

```

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**Additional context**
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