thread view: Refine the UI a bit (#36504)

Release Notes:

- N/A

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Co-authored-by: Agus Zubiaga <agus@zed.dev>
60960409f7Danilo Leal committed on 8/20/2025, 4:47:28 AM· committed by GitHubparentfbba6ad
11 files changedLine totals unavailable