fixing most whitespace issues, reordering namespaces and adding in headers (#5677)

src/modules/launcher/Wox.Plugin/ContextMenuResult.cs

@@ -1,9 +1,12 @@
-using System;
+// 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.Windows.Input;
 
 namespace Wox.Plugin
 {
-
     public class ContextMenuResult
     {
         public string PluginName { get; set; }
@@ -28,4 +31,4 @@ namespace Wox.Plugin
             return Title;
         }
     }
-}
+}