added LIFO history to popUp context

src/frontend/src/contexts/popUpContext.tsx

@@ -12,20 +12,20 @@ interface PopUpProviderProps {
 }
 
 const PopUpProvider = ({ children }: PopUpProviderProps) => {
-	const [popUpElement, setPopUpElement] = useState<JSX.Element | null>(null);
+  const [popUpElements, setPopUpElements] = useState<JSX.Element[]>([]);
 
   const openPopUp = (element: JSX.Element) => {
-		setPopUpElement(element);
+    setPopUpElements(prevPopUps => [element, ...prevPopUps]);
   };
 
   const closePopUp = () => {
-		setPopUpElement(null);
+    setPopUpElements(prevPopUps => prevPopUps.slice(1));
   };
 
   return (
     <PopUpContext.Provider value={{ openPopUp, closePopUp }}>
       {children}
-			{popUpElement}
+      {popUpElements[0]}
     </PopUpContext.Provider>
   );
 };