add features to products and fix cors settings

content/serializers.py

@@ -1,11 +1,18 @@
 from rest_framework import serializers
-from .models import Product, ContactMessage
+from .models import Product, ContactMessage , ProductFeature
 
+# Feature serializer
+class ProductFeatureSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = ProductFeature
+        fields = ['key_uz', 'key_ru', 'value_uz', 'value_ru']
 
 class ProductSerializer(serializers.ModelSerializer):
+    features = ProductFeatureSerializer(many=True, read_only=True) 
+
     class Meta:
         model = Product
-        fields = "__all__"
+        fields = ['id', 'name_uz', 'name_ru', 'image', 'description_uz', 'description_ru', 'features']
 
 
 class ContactSerializer(serializers.ModelSerializer):