Closes #49155. 

<img width="470" height="304" alt="image"
src="https://github.com/user-attachments/assets/80d696ef-fabf-4745-b6e3-83315a84c8d0"
/>

Release Notes:

- UI: Allow the keymap and settings UI to be opened without an active
window

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Co-authored-by: MrSubidubi <finn@zed.dev>
Co-authored-by: Finn Evers <finn.evers@outlook.de>