Return build back to production mode

javascript/webpack.config.prod.js

@@ -3,7 +3,7 @@ const WebpackCleanPlugin = require('webpack-clean');
 const common = require('./webpack.config');
 
 module.exports = merge(common, {
-  mode: 'development', // TODO return to production after adding support for Exchange. Do not merge this line
+  mode: 'production',
   plugins: [
     new WebpackCleanPlugin('dist/viamapi-iframe.js')
   ]