修改列表图片的大小，以修复图片有白边的bug

Code Review By Rock Zhang

@@ -42,7 +42,7 @@ class ListProcess
         $products = array();
 
         foreach ($data as $value) {
-            $products[] = Helpers::formatProduct($value, true, true, true);
+            $products[] = Helpers::formatProduct($value, true, true, true, 235, 314);
         }
 
         return $products;