[Flight] Color and badge non-primary environments (#31738)

Stacked on #31737.

<img width="987" alt="Screenshot 2024-12-11 at 8 41 15 PM"
src="https://github.com/user-attachments/assets/438379a9-0138-4d02-a53a-419402839558"
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When mixing environments (like "use cache" or third party RSC) it's
useful to color and badge those components differently to differentiate.

I'm not putting them in separate tracks because when they do actually
execute, like cache misses or third party RSCs, they behave like they're
part of the same tree.