Installed AI Assistant. applicable on Metadata and Teaser summarization

[LucGosso]

Hello Guys,

The AI Assistant offers a powerful productivity boost for editors and serves as an impressive demonstration for new Optimizely Customers. I hope you find it appealing and approve the pull request. All feedback appreciated. Thank you for your consideration!

For demo scenario: https://github.com/Epicweb-Optimizely/Epicweb.Optimizely.AIAssistant/blob/master/Example-Commerce-work-with-SEO-and-translations-on-a-product.md

**More examples and documentation ** https://github.com/Epicweb-Optimizely/Epicweb.Optimizely.AIAssistant

@bjuris @daniel-isaacs @anielsud @davidbuo @davidknipe @jonasbergqvist @lunchin

Blog post: https://optimizely.blog/2023/05/boost-your-productivity-with-the-ai-assistant-addon-for-optimizely-content-cloud/

[CLAassistant]

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