Add manual auth screen

moneymgr_mobile/lib/routes/login/base_auth_page.dart

@@ -7,8 +7,15 @@ import '../../services/router/routes_list.dart';
 
 class BaseAuthPage extends StatelessWidget {
   final List<Widget> children;
+  final String? title;
+  final bool? showSettings;
 
-  const BaseAuthPage({super.key, required this.children});
+  const BaseAuthPage({
+    super.key,
+    required this.children,
+    this.title,
+    this.showSettings,
+  });
 
   @override
   Widget build(BuildContext context) {
@@ -16,12 +23,15 @@ class BaseAuthPage extends StatelessWidget {
 
     return Scaffold(
       appBar: AppBar(
-        title: const Text('MoneyMgr'),
+        title: Text(title ?? 'MoneyMgr'),
         actions: [
-          IconButton(
-            onPressed: onSettingsPressed,
-            icon: const Icon(Icons.settings),
-          ),
+          // Settings button
+          showSettings != false
+              ? IconButton(
+                  onPressed: onSettingsPressed,
+                  icon: const Icon(Icons.settings),
+                )
+              : Container(),
         ],
       ),
       body: SeparatedColumn(