restructure overlay

src/components/Overlay/Loading.js

@@ -0,0 +1,21 @@
+import React from 'react'
+import copy from '../../js/data/copy.json'
+
+const LoadingOverlay = ({ isLoading, language }) => {
+  let classes = 'loading-overlay'
+  classes += (!isLoading) ? ' hidden' : ''
+
+  return (
+    <div id='loading-overlay' className={classes}>
+      <div className='loading-wrapper'>
+        <span id='loading-text' className='text'>{copy[language].loading}</span>
+        <div className='spinner'>
+          <div className='double-bounce1' />
+          <div className='double-bounce2' />
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default LoadingOverlay