bottom nav bar init

lib/myApp.dart

@@ -0,0 +1,14 @@
+import 'package:flutter/material.dart';
+import 'navigation.dart';
+
+class MyApp extends StatelessWidget {
+  const MyApp({ Key? key }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return const MaterialApp(
+      title: 'My App',
+      home: Navigation()
+    );
+  }
+}