Add scene to English challenges

[huyenltnguyen]

Description

• Add animation to dialogues in English challenges
• Add closed captions to dialogues in English challenges

I believe the information needed to implement these is available in the scene property of the /challenges JSON.

Web version reference: https://github.com/freeCodeCamp/freeCodeCamp/blob/main/client/src/templates/Challenges/components/scene/scene.tsx.