Adpative layout

- The desktop version has the score, ect, in the title bar area now while the mobile version remains the same
- Capitalized "bullseye"
- Used "late" keyword for certain variables
- Updated application Id

lib/desktop.dart

@@ -0,0 +1,20 @@
+import 'dart:io';
+
+import 'package:bitsdojo_window/bitsdojo_window.dart';
+import 'package:flutter/material.dart';
+
+bool get isDesktop =>
+    (Platform.isLinux || Platform.isMacOS || Platform.isWindows);
+
+class WindowButtons extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      children: [
+        MinimizeWindowButton(),
+        MaximizeWindowButton(),
+        CloseWindowButton()
+      ],
+    );
+  }
+}