refactoring: setup wizard pages with simple architecture.

client/src/containers/Setup/WizardSetupPage.js

@@ -0,0 +1,19 @@
+import React from 'react';
+
+import EnsureOrganizationIsNotReady from './EnsureOrganizationIsNotReady';
+import SetupRightSection from './SetupRightSection';
+import SetupLeftSection from './SetupLeftSection';
+
+
+export default function WizardSetupPage({
+  organizationId,
+}) {
+  return (
+    <EnsureOrganizationIsNotReady>
+      <div class="setup-page">
+        <SetupLeftSection />
+        <SetupRightSection />
+      </div>
+    </EnsureOrganizationIsNotReady>
+  );
+};