thread_view: Move handlers for confirmed completions to the MessageEditor (#36214)

Release Notes:

- N/A

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Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
1931889759Cole Miller committed on 8/15/2025, 6:55:34 PM· committed by GitHubparent3c5d5a1
4 files changedLine totals unavailable