Prop generation should pascal case all keys in props.json

[wise-king-sullyman]

Currently the keys in the props.json file generated by our prop data generation pipeline include suffixes such as -deprecated or -next

This leads to situations such as our deprecated components having names like Chip-deprecated, which doesn't otherwise match our route format and can make accessing deprecated/next components difficult.

We should pascal case the component/interface names to prevent this issue, and update any routes as needed to support this change.