Add back non-streaming docs

[Unshure]

Description

Adding back documentation for non-streaming models

Type of Change

• New content addition
• Content update/revision
• Structure/organization improvement
• Typo/formatting fix
• Bug fix
• Other (please describe):

New content addition

Motivation and Context

non-streaming support has been pushed, so adding the docs back

Areas Affected

Bedrock model provider

Screenshots

N/A

Checklist

• I have read the CONTRIBUTING document
• My changes follow the project's documentation style
• I have tested the documentation locally using mkdocs serve
• Links in the documentation are valid and working
• Images/diagrams are properly sized and formatted
• All new and existing tests pass

Additional Notes

N/A

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