Fixed OP not being orange in threads

[JakeShirley]

Checklist

• [x] I have described what this PR contains

Choose one of the following two options:

• • [x] This PR does not introduce major changes
• • [ ] This PR introduces major changes, and I have consulted the Mlem Development Matrix room

Choose one of the following two options:

• • [x] This PR does not change the UI in any way
• • [ ] This PR adds new UI elements / changes the UI, and I have attached pictures or videos of the new / changed UI elements

Pull Request Information

About this Pull Request

Looks like the post context got stripped in the last round of refactors.

Screenshots and Videos

n/a

Additional Context

We should look into some UI-based tests.