Add new features and enhancements to the WebUI and dashboard components

- Updated package.json to include new dependencies: `@radix-ui/react-dialog` and `cmdk`.
- Enhanced global styles in globals.css for improved visual depth in dark mode.
- Refactored dashboard page components to improve layout and accessibility, including new icons and responsive design adjustments.
- Implemented suspense handling in commands page for better loading states.
- Improved sidebar navigation with new icons and mobile responsiveness.
- Added FieldAnchor components across various forms for better accessibility and structure.
- Enhanced commands manager with search parameter handling for improved user experience.
- Updated multiple module forms to include FieldAnchor for consistent layout and accessibility.

apps/webui/src/app/globals.css

@@ -81,4 +81,11 @@ body {
   background: var(--background);
   color: var(--foreground);
   font-family: var(--font-sans), ui-sans-serif, system-ui, sans-serif;
+  -webkit-font-smoothing: antialiased;
+}
+
+/* Subtle page depth without full-bleed gradients (SPEC). */
+.dark body {
+  background-image: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.08), transparent);
+  background-attachment: fixed;
 }