agent: Add search to Thread History (#28085)

![CleanShot 2025-04-04 at 09 45
47@2x](https://github.com/user-attachments/assets/a8ec4086-f71e-4ff4-a5b3-4eb5d4c48294)


Release Notes:

- agent: Add search box to thread history

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Co-authored-by: Bennet Bo Fenner <bennetbo@gmx.de>
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
3d48efad67Agus Zubiaga committed on 4/4/2025, 1:09:21 PM· committed by GitHubparent277a3f8
3 files changedLine totals unavailable