Separated router from the rest of the application. Added ParcelsListComponent and NewParcelComponent. Secured whole application with Keycloak.

src/index.js

@@ -21,6 +21,7 @@ root.render(
     </React.StrictMode>
 );
 
+
 // If you want to start measuring performance in your app, pass a function
 // to log results (for example: reportWebVitals(console.log))
 // or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals