Only run loadScript once

Adding an empty array to the useEffect function so it doesn't run on every re-render. This makes it so the useEffect is only run once.. when the user first loads the page or refreshes.

src/app.js

@@ -22,7 +22,7 @@ const App = () => {
  useEffect(() => {
  // Load all cloudinary scripts
  loadScript('https://widget.cloudinary.com/v2.0/global/all.js')
- })
+ }, [])
 
  // Return the header and either show an error or render the loaded profiles.
  return (