feat: implement sidebar notification drawer and update investor page padding layouts

src/app/investor/withdraw/page.tsx

@@ -108,7 +108,7 @@ export default function InvestorWithdrawPage() {
   };
 
   return (
-    <div className="min-h-screen">
+    <div className="min-h-screen lg:pt-6 pt-0">
       <InvestorNotification isMobile />
       <div className="pt-18 lg:pt-0 p-4 lg:p-6 max-w-8xl mx-auto">
         {/* Header */}