feat: create toggle product wishlist

framework/vendure/utils/mutations/toggle-wishlist-mutation.tsx

@@ -0,0 +1,9 @@
+export const toggleWishlistMutation = /* GraphQL */ `
+    mutation toggleFavorite($productId:ID!){
+        toggleFavorite(productId:$productId){
+            items{
+                id
+            }
+        }
+    }
+`