Revert core UI palette layering tweaks

[juliusmarminge]

Summary

• Reverts the command palette backdrop and input wrapper layering adjustments.
• Restores the previous command dialog backdrop treatment while keeping the palette structure intact.
• Lowers toast stacking order back to the prior z-index behavior.

Testing

• Not run

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Note

Low Risk
Low risk UI-only changes that adjust dialog backdrop styling and slightly refactor command palette input layout; main risk is minor visual/regression in overlay appearance.

Overview
Updates the command palette dialog overlay styling by changing the default CommandDialogBackdrop to a darker, blurred backdrop and adding a backdropClassName override on CommandDialogPopup (used by CommandPalette to keep its prior backdrop treatment).

Refactors CommandInput to drop the wrapperClassName prop and instead applies submenu-specific wrapper classes via an external <div> in CommandPalette, avoiding wrapper styling being controlled inside the input component.

^{Reviewed by Cursor Bugbot for commit 968db3c. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Revert command palette backdrop to bg-background/60 with no blur

• Reverts the default CommandDialogBackdrop styling from bg-background/60 back from the new bg-black/32 backdrop-blur-sm default by overriding it in CommandPalette via a new backdropClassName prop on CommandDialogPopup.
• Removes the wrapperClassName prop from CommandInput, replacing it with a locally-scoped wrapper <div> in CommandPalette.tsx to apply submenu pointer/cursor styles.
• Behavioral Change: CommandInput's wrapperClassName prop is no longer supported; the wrapper always uses fixed padding (px-2.5 py-1.5).

^{Macroscope summarized 968db3c.}

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✨ Finishing Touches

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[macroscopeapp]

Approvability

Verdict: Approved

This PR reverts visual styling for the command palette backdrop (blur effect, background color) and reorganizes CSS class application. These are purely cosmetic changes with no runtime behavior impact beyond appearance.

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