Closes #2 - implemented app structure

lib/main.dart

@@ -1,14 +1,5 @@
-import 'package:flutter/material.dart';
-import './appbar.dart';
+import 'routes.dart';
 
-void main() => runApp(BeepApp());
-
-class BeepApp extends StatelessWidget {
-  @override
-  Widget build(BuildContext context) {
-    return Column(children: <Widget>[
-      AppBar("BeepApp"),
-      Container(child: Text("Hello World"))
-    ]);
-  }
+void main() {
+  Routes();
 }

lib/routes.dart

@@ -0,0 +1,16 @@
+import 'package:flutter/material.dart';
+import 'screens/home/index.dart';
+
+class Routes {
+  final routes = <String, WidgetBuilder>{
+    '/home': (BuildContext context) => Home()
+  };
+
+  Routes() {
+    runApp(MaterialApp(
+      title: "Beep",
+      routes: routes,
+      home: Home(),
+    ));
+  }
+}

lib/screens/home/home.dart

@@ -1,11 +1,11 @@
 import 'package:flutter/material.dart';
-import 'package:frontend_flutter/widgets/app_bar/index.dart';
+import 'package:frontend_flutter/widgets/top_bar/index.dart';
 
 class Home extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Column(children: <Widget>[
-      AppBar("BeepApp"),
+      TopBar("BeepApp"),
       Container(child: Text("Hello World"))
     ]);
   }

lib/widgets/app_bar/index.dart

@@ -1 +0,0 @@
-export 'app_bar.dart';

lib/widgets/top_bar/index.dart

@@ -0,0 +1 @@
+export 'top_bar.dart';

lib/widgets/top_bar/top_bar.dart

@@ -1,10 +1,10 @@
 import "package:flutter/material.dart";
 
-class AppBar extends StatelessWidget {
+class TopBar extends StatelessWidget {
   final String title;
-  final double barHeight = 5.0;
+  final double barHeight = 40.0;
 
-  AppBar(title) : title = title;
+  TopBar(title) : title = title;
 
   @override
   Widget build(BuildContext context) {