[TASK] Add video showcase or convert to carousel with YouTube videos in ProductShowcase for Landing

[charlottewiltshire0]

We need to update the ProductShowcase section on the Landing page. There are two potential approaches:

1. Add a video: Create a video showcasing an overview of our engine to be displayed in the ProductShowcase.
2. Convert to a carousel: Change the section to a carousel featuring the latest videos from our YouTube channel, automatically fetching and displaying them.