Add admin page for web apps

app/controllers/admin/app_catalog/web_apps_controller.rb

@@ -0,0 +1,9 @@
+class Admin::AppCatalog::WebAppsController < Admin::AppCatalogController
+  def index
+    @pagy, @web_apps = pagy(AppCatalog::WebApp.order('created_at desc'))
+
+    @stats = {
+      known_apps: AppCatalog::WebApp.count
+    }
+  end
+end