fix: move delete user button to client component to fix onClick error

app/admin/users/DeleteUserButton.tsx

@@ -0,0 +1,27 @@
+'use client';
+
+import { Trash2 } from 'lucide-react';
+import { deleteUser } from './actions';
+
+export function DeleteUserButton({ userId, username, disabled }: { userId: string; username: string; disabled: boolean }) {
+  if (disabled) return null;
+
+  const handleSubmit = (e: React.FormEvent<HTMLFormElement>) => {
+    if (!confirm(`"${username}" kullanıcısı silinsin mi?`)) {
+      e.preventDefault();
+    }
+  };
+
+  return (
+    <form action={deleteUser} onSubmit={handleSubmit}>
+      <input type="hidden" name="id" value={userId} />
+      <button
+        type="submit"
+        title="Kullanıcıyı Sil"
+        className="p-2 text-red-400 hover:text-red-600 hover:bg-red-50 dark:hover:bg-red-900/20 rounded-lg transition-colors"
+      >
+        <Trash2 className="w-4 h-4" />
+      </button>
+    </form>
+  );
+}