Fix DataCenter emission calculation: VM-level processing, authentication fixes, and type safety improvements

src/App.test.js

@@ -0,0 +1,8 @@
+import ReactDOM from 'react-dom'
+import App from './App'
+
+it('renders without crashing', () => {
+  const div = document.createElement('div')
+  ReactDOM.render(<App />, div)
+  ReactDOM.unmountComponentAtNode(div)
+})