Rename themes -> flavours ? ?

app/javascript/flavours/glitch/components/loading_indicator.js

@@ -0,0 +1,11 @@
+import React from 'react';
+import { FormattedMessage } from 'react-intl';
+
+const LoadingIndicator = () => (
+  <div className='loading-indicator'>
+    <div className='loading-indicator__figure' />
+    <FormattedMessage id='loading_indicator.label' defaultMessage='Loading...' />
+  </div>
+);
+
+export default LoadingIndicator;