fix logic for name product input

src/main/java/io/hardingadonis/saledock/controller/management/product/UpdateProductServlet.java

@@ -71,7 +71,7 @@ protected void doPost(HttpServletRequest request, HttpServletResponse response)
             return;
         }
         Integer idP = Integer.valueOf(pId);
-        String productName = request.getParameter("productName");
+        String productName = request.getParameter("productName").trim();
         String productDescription = request.getParameter("productDescription");
         String productPrice = request.getParameter("price");