onboarding: Add the AI page (#35351)

This PR starts the work on the AI onboarding page as well as the
configuration modal

Release Notes:

- N/A

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Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
Co-authored-by: Anthony <anthony@zed.dev>
b01d1872ccFinn Evers committed on 8/1/2025, 2:43:59 PM· committed by GitHubparente5c6a59
12 files changedLine totals unavailable