Add an app bar

lib/ui/routes/home_route.dart

@@ -78,6 +78,9 @@ class _HomeRouteState extends State<HomeRoute> {
     return WillPopScope(
       onWillPop: _willPop,
       child: Scaffold(
+        appBar: AppBar(
+          title: _buildNavigationBarItems()[_currTab].title,
+        ),
         body: SafeArea(
           child: _buildBody(context),
         ),