dillon1000/react

[Devtools] Navigating commits performance panel hotkey (#35238)

## Summary
Add keyboard shortcuts (Cmd/Ctrl + Left/Right arrow keys) to navigate
between commits in the Profiler's snapshot view.

Moved `filteredCommitIndices` management and commit navigation logic
(`selectNextCommitIndex`, `selectPrevCommitIndex`) from
`SnapshotSelector` into `useCommitFilteringAndNavigation` used by
`ProfilerContext` to enable keyboard shortcuts from the top-level
Profiler component.

## How did you test this change?
- New tests in ProfilerContext-tests
- Built browser extension: `yarn build:<browser name>`
- tested in browser: `yarn run test:<browser name>`
- Manually verified Left/Right arrow navigation cycles through commits
- Verified navigation respects commit duration filter
- Verified reload-and-profile button unaffected

Chrome:


https://github.com/user-attachments/assets/01d2a749-13dc-4d08-8bcb-3d4d45a5f97c

Edge with duration filter:


https://github.com/user-attachments/assets/a7f76ff7-2a0b-4b9c-a0ce-d4449373308b

firefox mixing hotkey with clicking arrow buttons:


https://github.com/user-attachments/assets/48912d68-7c75-40f2-a203-5e6d7e6b2d99