fix(neon): Disable debug banner

Signed-off-by: jld3103 <jld3103yt@gmail.com>

packages/neon/neon/lib/src/app.dart

@@ -297,6 +297,7 @@ class _NeonAppState extends State<NeonApp> with WidgetsBindingObserver, tray.Tra
                     );
 
                     return MaterialApp.router(
+                      debugShowCheckedModeBanner: false,
                       localizationsDelegates: [
                         ..._appImplementations.map((final app) => app.localizationsDelegate),
                         ...AppLocalizations.localizationsDelegates,