Open hidden files in Open-EditorFile

On macOS and Linux, dot files are hidden, so `Get-ChildItem` skips them
unless `-Force` is passed. This meant `psedit ~/.zshrc` (and similar)
silently opened nothing, making the alias useless for exactly the kind of
config files people most often want to jump into.

Add `-Force` to the `Get-ChildItem` call in `Open-EditorFile` so hidden
files resolve and open. The issue notes a wrinkle: with `-Force`, passing a
*directory* would now also enumerate its hidden files. I think that's an
acceptable trade-off for the common path-to-a-file case, and a draft for
maintainer review either way.

Fixes #1750.

Drafted by Copilot (Claude Opus 4.8).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: andyleejordan

module/PowerShellEditorServices/Commands/Public/CmdletInterface.ps1

@@ -195,7 +195,7 @@ function Open-EditorFile {
             $preview = $true
         }
 
-        Get-ChildItem $Paths -File | ForEach-Object {
+        Get-ChildItem $Paths -File -Force | ForEach-Object {
             $psEditor.Workspace.OpenFile($_.FullName, $preview)
         }
     }