chore: Cleanup project structure, add debug output to build.gradle

lib/routing/routes/landing_route.dart

@@ -0,0 +1,18 @@
+import 'package:flutter/widgets.dart';
+import 'package:go_router/go_router.dart';
+import 'package:paperless_mobile/features/landing/view/landing_page.dart';
+import 'package:paperless_mobile/routing/navigation_keys.dart';
+
+class LandingBranch extends StatefulShellBranchData {
+  static final GlobalKey<NavigatorState> $navigatorKey = landingNavigatorKey;
+
+  const LandingBranch();
+}
+
+class LandingRoute extends GoRouteData {
+  const LandingRoute();
+  @override
+  Widget build(BuildContext context, GoRouterState state) {
+    return const LandingPage();
+  }
+}