Summary: Launch Explainer with Generative AI

Why It Matters: This new tool helps users understand content better. It uses AI to explain things.

What Changed:

• Remove "Feedback" section.
• Update video player duration from 0:00 to 1:10.
• Add "CCBA-Footer" section.
• Add "What Is Generative AI?" link under "Learn" section.
• Update "Cookie Preferences" link text to "Your Privacy Choices".
• Add new "Explainer" feature description.