feat: make server own products

lib/views/widgets/managed_on_website_notice.dart

@@ -0,0 +1,24 @@
+import 'package:flutter/material.dart';
+
+import '../../l10n/app_localizations.dart';
+
+/// Tells that the products of a paired tablet are managed on the website.
+class ManagedOnWebsiteNotice extends StatelessWidget {
+  const ManagedOnWebsiteNotice({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final colors = Theme.of(context).colorScheme;
+
+    return Card(
+      color: colors.secondaryContainer,
+      child: ListTile(
+        leading: Icon(Icons.language, color: colors.onSecondaryContainer),
+        title: Text(
+          AppLocalizations.of(context).productsManagedOnWebsite,
+          style: TextStyle(color: colors.onSecondaryContainer),
+        ),
+      ),
+    );
+  }
+}