chore(products): indents

Signed-off-by: Aleksandr_Zavadkin <az@rees46.ru>

Author: gochicus

source/includes/_products.md.erb

@@ -483,13 +483,13 @@ curl 'https://<%= config[:api_endpoint] %>/products/cart?did=DEVICE_ID&shop_id=S
 
 ```swift
 sdk.getProductsFromCart { result in
-            switch result {
-            case .success(let items):
-                print("cart items: \n \(items)")
-            case .failure(let error):
-                print("error: \(error)")
-            }
-        }
+  switch result {
+    case .success(let items):
+      print("cart items: \n \(items)")
+    case .failure(let error):
+      print("error: \(error)")
+  }
+}
 ```
 
 ```jsx