💄 style(topup): align container width with PersonalSetting (w-full max-7xl)

- Set TopUp page outer wrapper to "w-full max-w-7xl mx-auto px-2"
  to match PersonalSetting and ensure consistent layout width and padding.
- No functional changes; UI-only adjustment.
- Lint checks passed.
- Verified that pages/TopUp only re-exports the component (no extra wrapper).

Affected: web/src/components/topup/index.jsx

web/src/components/topup/index.jsx

@@ -449,7 +449,7 @@ const TopUp = () => {
   };
 
   return (
-    <div className='mx-auto relative min-h-screen lg:min-h-0 mt-[60px] px-2'>
+    <div className='w-full max-w-7xl mx-auto relative min-h-screen lg:min-h-0 mt-[60px] px-2'>
       {/* 划转模态框 */}
       <TransferModal
         t={t}