Upgrade nextjs version and fix example (#649)

apps/nextjs-app/app/NoSSRWrapper.tsx

@@ -0,0 +1,8 @@
+import dynamic from 'next/dynamic'
+import React from 'react' 
+const NoSSRWrapper = props => ( 
+    <React.Fragment>{props.children}</React.Fragment> 
+) 
+export default dynamic(() => Promise.resolve(NoSSRWrapper), { 
+    ssr: false 
+})