feat: create pagination selector state

src/components/organisms/BrowserWindow.tsx

@@ -58,6 +58,7 @@ export const BrowserWindow = () => {
 
     const [listSelector, setListSelector] = useState<string | null>(null);
     const [fields, setFields] = useState<Record<string, TextStep>>({});
+    const [paginationSelector, setPaginationSelector] = useState<string | null>(null);
 
     const { socket } = useSocketStore();
     const { width, height } = useBrowserDimensionsStore();