Prompt Title: Close all open modals.

To close all previously opened modals when a new modal is opened using `react-modal`, you can keep track of the currently open modal using a state variable, and close all previously opened modals whenever a new modal is opened. Here's an example implementation: 1. Add a state variable to keep track of the currently open modal: ``` const [isOpen, setIsOpen] = useState(false); ``` 2. Modify your open modal function to close all previously opened modals before opening the new one: ``` const openModal = () => { // Close all previously opened modals setIsOpen(false); // Open the new modal setIsOpen(true); }; ``` 3. In your `Modal` component, set the `isOpen` prop to the value of the `isOpen` state variable: ``` <Modal isOpen={isOpen}> {/* Modal content */} </Modal> ``` With these changes, whenever you call the `openModal` function to open a new modal, all previously opened modals will be closed.