[AOT] clean up AOT issue in Settings.UI (#36559)

* Rename source generation context file

* fix build issue

* fix path bug

---------

Co-authored-by: Yu Leng (from Dev Box) <yuleng@microsoft.com>

src/settings-ui/Settings.UI/Helpers/ActionMessage.cs

@@ -0,0 +1,48 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Text;
+using System.Text.Json.Serialization;
+using System.Threading.Tasks;
+
+namespace Microsoft.PowerToys.Settings.UI.Helpers
+{
+    public sealed class ActionMessage
+    {
+        [JsonPropertyName("action")]
+        public SettingsAction Action { get; set; }
+
+        public static ActionMessage Create(string actionName)
+        {
+            return new ActionMessage
+            {
+                Action = new SettingsAction
+                {
+                    PublishedDate = new SettingsGeneral
+                    {
+                        ActionName = actionName,
+                    },
+                },
+            };
+        }
+    }
+
+    [SuppressMessage("StyleCop.CSharp.MaintainabilityRules", "SA1402:File may only contain a single type", Justification = "Those are just a define for one simple struct")]
+    public sealed class SettingsAction
+    {
+        [JsonPropertyName("general")]
+        public SettingsGeneral PublishedDate { get; set; }
+    }
+
+    [SuppressMessage("StyleCop.CSharp.MaintainabilityRules", "SA1402:File may only contain a single type", Justification = "Those are just a define for one simple struct")]
+    public sealed class SettingsGeneral
+        {
+        [JsonPropertyName("action_name")]
+        public string ActionName { get; set; }
+    }
+}