Cleaning technical debt (#192)

* abstract Space component to switch out Map

* basic viewing possible

* restructure components dir

* all jsx --> js

* App.jsx --> App.js

* comment out 3d for now

src/components/App.js

@@ -0,0 +1,11 @@
+import "../scss/main.scss";
+import React from "react";
+import Layout from "./Layout";
+
+class App extends React.Component {
+  render() {
+    return <Layout />;
+  }
+}
+
+export default App;