grid 列右对齐时表头不居中的问题

frontend/saas-web/app/view/core/form/field/DetailGridField.scss

@@ -17,6 +17,7 @@
     text-align: center;
     font-size:14px;
     font-weight: 500;
+    margin-right: 0;
 }
 .x-grid-necessary .x-column-header-text:before{
     content: '*';