Adjusted CloseWindow component to only call window.close() when rendered, not when just imported

Author: mkimberlin

web-ui/src/pages/CloseWindow.jsx

@@ -1,5 +1,9 @@
-window.close();
+import React from 'react';
+import { useEffect } from 'react';
 
 export default function CloseWindow() {
+  useEffect(() => {
+      window.close();
+  }, []);
   return <></>;
 }