feat(ios): add ios shortcuts support

lib/shared/widgets/model_avatar.dart

@@ -4,16 +4,16 @@ import '../theme/theme_extensions.dart';
 import 'user_avatar.dart';
 
 /// Displays a model's avatar image with automatic caching and fallback UI.
-/// 
+///
 /// The avatar can display:
 /// - Network images from the OpenWebUI model avatar endpoint
 /// - Data URIs (base64-encoded images)
 /// - A fallback UI showing the first letter of the model name or a brain icon
-/// 
+///
 /// Images are automatically cached using [CachedNetworkImage] with proper
 /// authentication headers. The cache respects self-signed certificates if
 /// configured.
-/// 
+///
 /// Usage:
 /// ```dart
 /// final avatarUrl = resolveModelIconUrlForModel(apiService, model);
@@ -22,11 +22,11 @@ import 'user_avatar.dart';
 class ModelAvatar extends StatelessWidget {
   /// The size (width and height) of the avatar in logical pixels.
   final double size;
-  
+
   /// The URL of the avatar image. Should be obtained via
   /// [resolveModelIconUrlForModel] to use the correct OpenWebUI endpoint.
   final String? imageUrl;
-  
+
   /// The model name, used for the fallback UI (shows first letter).
   final String? label;