feat(ground-suite): add replay observability console

ground-suite/lib/app/app.dart

@@ -0,0 +1,18 @@
+import 'package:flutter/material.dart';
+
+import 'app_shell.dart';
+import 'theme.dart';
+
+class GroundSuiteApp extends StatelessWidget {
+  const GroundSuiteApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Ground Suite',
+      debugShowCheckedModeBanner: false,
+      theme: groundSuiteTheme(),
+      home: const AppShell(),
+    );
+  }
+}