Refactor code structure for improved readability and maintainability

Co-authored-by: Copilot <copilot@github.com>

flutter/lib/features/recipes/data/recipe_repository.dart

@@ -12,12 +12,12 @@ class RecipeRepository {
 
   Future<List<Recipe>> fetchRecipes({String? token}) async {
     try {
-      final data = await _api.getJson(RecipeApiPaths.list, token: token);
+      final dynamic data = await _api.getJson(RecipeApiPaths.list, token: token);
       if (data is! List) {
         throw const ApiException(
             type: ApiErrorType.unknown, message: 'Ogiltigt svar från servern.');
       }
-      return data
+      return (data as List)
           .map((e) => Recipe.fromJson(e as Map<String, dynamic>))
           .toList();
     } on ApiException {

flutter/lib/features/recipes/presentation/recipe_detail_screen.dart

@@ -21,8 +21,8 @@ class RecipeDetailScreen extends ConsumerWidget {
 
     return Scaffold(
       appBar: AppBar(
-        title: Text(recipeAsync.valueOrNull?.title ?? 'Recept'),
-        actions: recipeAsync.valueOrNull == null
+        title: Text(recipeAsync.maybeWhen(data: (d) => d, orElse: () => null)?.title ?? 'Recept'),
+        actions: recipeAsync.maybeWhen(data: (d) => d, orElse: () => null) == null
             ? []
             : [
                 IconButton(