[stevebauman]

The full-width editor and preview bars take space away from the canvas, and the settings use several different control styles.

This moves the editor and preview actions into compact floating toolbars and adds a collapsible inspector on the right.

• Refines the window structure and project tabs, with consistent surfaces, borders, spacing, hover states, and keyboard focus styling.
• Places language, settings, add/remove, and reorder actions in the editor toolbar. Moving editors animates into place and preserves their resizable dividers.
• Groups copy/export, fit, zoom, and workspace layout controls in the preview toolbar. Zoom supports typed percentages and presets beyond the previous limits.
• Keeps Style, Themes, Backdrop, and Scenes beside the inspector toggle at the bottom. The panel slides at a fixed width and adapts to smaller windows.
• Reworks settings popovers with visual layout and position choices, clearer spacing and corner controls, and consistent inputs and switches.
• Simplifies the splash screen to the logo and loading indicator, and removes parentheses from unit labels.

Validated with all 208 tests, the production build, the Cloudflare Pages build, and browser checks of the workspace and controls.

[cloudflare-workers-and-pages]

Deploying showcode with    Cloudflare Pages

Latest commit:	a7e5d44
Status:	✅  Deploy successful!
Preview URL:	https://0abe03ae.showcode.pages.dev
Branch Preview URL:	https://feature-desktop-workspace.showcode.pages.dev

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