Function useIsInitialized

useIsInitialized(): { isInitialized: boolean }
Hook to check if the CDP client has been properly initialized. This should be used before attempting any CDP operations to ensure the client is ready.

Returns { isInitialized: boolean }
Example
```
function LoadingGuard({ children }) {
  const { isInitialized } = useIsInitialized();

  if (!isInitialized) {
    return <div>Loading...</div>;
  }

  return children;
}
```