- Introduction on base view model and stateless widget classes

- Implementation of firebase
- Implementation of dependency injection

Took 11 hours 26 minutes

lib/screens/OverviewScreen.dart

@@ -0,0 +1,8 @@
+import 'package:flutter/cupertino.dart';
+
+class OverviewScreen extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Container();
+  }
+}