add: desktop password page

flutter/lib/desktop/pages/desktop_remote_page.dart

@@ -0,0 +1,16 @@
+import 'package:flutter/material.dart';
+
+/// Remote Page, use it in multi window context
+class DesktopRemotePage extends StatefulWidget {
+  const DesktopRemotePage({Key? key}) : super(key: key);
+
+  @override
+  State<DesktopRemotePage> createState() => _DesktopRemotePageState();
+}
+
+class _DesktopRemotePageState extends State<DesktopRemotePage> {
+  @override
+  Widget build(BuildContext context) {
+    return Container();
+  }
+}