app.js

const App = ()=>{
   const [itemModalOpen, setItemModalOpen, toggleModal] = useModal()
   return (
     <div className="App">
         <button onClick={toggleModal}>Show Modal</button>
         <CustomModal
             title="Item Modal"
             isActive={itemModalOpen}
             handleClose={() => setItemModalOpen(false)}
          >
            {...children}           </CustomModal>
      </div>
   )
}

export default App;