increase z-index level for the header component

src/layouts/GetStartedLayout.tsx

@@ -8,7 +8,7 @@ interface GetStartedLayoutProps {
 const GetStartedLayout: React.FC<GetStartedLayoutProps> = ({ children }) => {
   return (
     <div className="containerMode mb-[5.4375rem]">
-      <div className='sticky top-0 bg-white'>
+      <div className='sticky z-50 top-0 bg-white'>
         <Header hideSidebar={true} hideMenu={true} />
       </div>
       <div className="flex flex-col min-h-[70vh] justify-between">