Add DALL-E 3 support

[justinh-rahb]

Summary

This PR introduces support for the DALL-E 3 model within our image generation feature.

Description

We've extended the generate_image function to accommodate the new DALL-E 3 API parameters, allowing users to take advantage of the latest advancements in image generation technology. This includes the ability to specify the model version, style, quality, and user parameters which align with OpenAI's API for DALL-E 3.

Related Issue(s)

N/A - This is a proactive enhancement to leverage new API features.

Motivation and Context

The addition of DALL-E 3 support keeps our application at the forefront of AI-powered image generation, offering users higher-quality images and more detailed control over the generation process. This update ensures our app remains competitive and offers the latest AI features available.

Types of changes

• New feature (non-breaking change which adds functionality)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.