Hide cart for admin users and remove confirmation from view-only modals

Admin Cart Visibility:
- Hide cart icon/badge in mobile header for admin users
- Cart was already hidden in desktop sidebar
- Admins don't need to purchase products

Modal Confirmation Improvements:
- Removed confirmation from AdminOrders detail dialog (view-only)
- Removed confirmation from AdminMembers detail dialog (view-only)
- Kept confirmation on AdminProducts form dialog (has form inputs)
- Kept confirmation on AdminEvents form dialogs (Event and Block forms)
- Kept confirmation on AdminConsulting meet link dialog (has form input)

This prevents annoying confirmations on simple view/close actions while
still protecting users from accidentally closing forms with unsaved data.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/pages/admin/AdminMembers.tsx

@@ -205,13 +205,7 @@ export default function AdminMembers() {
               )}
             </div>
 
-        <Dialog open={dialogOpen} onOpenChange={(open) => {
-          if (!open) {
-            const confirmed = window.confirm('Tutup dialog? Data yang belum disimpan akan hilang.');
-            if (!confirmed) return;
-          }
-          setDialogOpen(open);
-        }}>
+        <Dialog open={dialogOpen} onOpenChange={setDialogOpen}>
           <DialogContent className="max-w-lg border-2 border-border">
             <DialogHeader>
               <DialogTitle>Detail Member</DialogTitle>