fix: fix classnames typo in PageHeaderWrapper (#4071)

src/components/PageHeaderWrapper/index.js

@@ -48,7 +48,7 @@ const PageHeaderWrapper = ({
   ...restProps
 }) => {
   return (
-    <div style={{ margin: '-24px -24px 0' }} className={classNames(classNames, styles.main)}>
+    <div style={{ margin: '-24px -24px 0' }} className={classNames(wrapperClassName, styles.main)}>
       {top}
       <MenuContext.Consumer>
         {value => {