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/components/views/settings-view.tsx

@@ -67,6 +67,8 @@ export function SettingsView() {
       name: project.name,
       path: project.path,
       theme: project.theme as Theme | undefined,
+      icon: project.icon,
+      customIconPath: project.customIconPath,
     };
   };