SITES-22293: Evaluate technical feasibility of switching the app

[irenelagno]

testing URLs
gpt-4-turbo utilizing /v1/completions https://experience-qa.adobe.com/?devMode=true&shell_source=workspace&workspace=gpt4&shell_ims=prod#/aem/generate-variations/
gpt-4-turbo utilizing /v2/chat/completions https://experience-qa.adobe.com/?devMode=true&shell_source=workspace&workspace=gpt4chatv2&shell_ims=prod#/aem/generate-variations/

the code for testing /v2/chat/completions cherry picked from the #235

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• 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.
• I have added tests to cover my changes.
• All new and existing tests passed.