[cmdpal] Fix "copy file path" function in file search extension (#38077)

The original code not work. It will throw com exception.

I prefer to use ClipboardHelper one.

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Co-authored-by: Yu Leng (from Dev Box) <[email protected]>

Author: moooyo

src/modules/cmdpal/Exts/Microsoft.CmdPal.Ext.Indexer/Commands/CopyPathCommand.cs

@@ -5,7 +5,6 @@
 using Microsoft.CmdPal.Ext.Indexer.Data;
 using Microsoft.CmdPal.Ext.Indexer.Properties;
 using Microsoft.CommandPalette.Extensions.Toolkit;
-using Windows.ApplicationModel.DataTransfer;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Commands;
 
@@ -24,10 +23,7 @@ public override CommandResult Invoke()
     {
         try
         {
-            var dataPackage = new DataPackage();
-            dataPackage.SetText(_item.FullPath);
-            Clipboard.SetContent(dataPackage);
-            Clipboard.Flush();
+            ClipboardHelper.SetText(_item.FullPath);
         }
         catch
         {