Add Video Overview of CoCalc's AI Assistant on the Features Page

[Blaec-CoCalc]

Is your feature request related to a problem? Please describe.
I believe that CoCalc's features, particularly its AI Assistant for Jupyter Notebooks, could be better showcased. Currently, users may overlook this valuable resource as it is not visibly highlighted.

Describe the solution you'd like
I propose that the video titled "Quick Overview of CoCalc's AI Assistant for Jupyter Notebooks" (available at: https://youtu.be/e8HQqrYTHro) be integrated near the top of the CoCalc Feature Page (https://cocalc.com/features/ai). Additionally, I suggest that the current graphic at the top of the page be removed or repositioned to enhance clarity and SEO optimization.

Describe alternatives you've considered
An alternative could be to simply add the video in a less prominent position, but this may not adequately capture user interest.

Additional context
Including visual content such as this video can significantly improve user understanding and engagement with CoCalc's features. Enhancing the SEO of the page could also drive more traffic and visibility to the platform, benefiting both the developers and users by showcasing the AI Assistant's capabilities effectively.