feat: enhance project management with custom icon support and UI improvements

- Introduced custom icon functionality for projects, allowing users to upload and manage their own icons.
- Updated Project and ProjectRef types to include customIconPath.
- Enhanced the ProjectSwitcher component to display custom icons alongside preset icons.
- Added EditProjectDialog for inline editing of project details, including icon uploads.
- Improved AppearanceSection to support custom icon uploads and display.
- Updated sidebar and project switcher UI for better user experience and accessibility.

Implements #469

apps/ui/src/hooks/use-settings-migration.ts

@@ -533,6 +533,8 @@ export function hydrateStoreFromSettings(settings: GlobalSettings): void {
     lastOpened: ref.lastOpened,
     theme: ref.theme,
     isFavorite: ref.isFavorite,
+    icon: ref.icon,
+    customIconPath: ref.customIconPath,
     features: [], // Features are loaded separately when project is opened
   }));