- Introduction on base view model and stateless widget classes

- Implementation of firebase
- Implementation of dependency injection

Took 11 hours 26 minutes

lib/widgets/ButtonWidget.dart

@@ -0,0 +1,23 @@
+
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+class ButtonWidget extends StatelessWidget{
+  final String label;
+  final Function onPressed;
+
+  ButtonWidget(this.label, {this.onPressed});
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      margin: EdgeInsets.only(top: 20, bottom: 12),
+      child: ElevatedButton(
+        onPressed: onPressed,
+        child: Text(label),
+      ),
+    );
+  }
+
+
+}