feat(RDPSign): opdatér Get-DesktopPaths til OneDrive Desktop

- Erstat Join-Path/Test-Path med Get-ChildItem -Filter "Desktop" -Depth 2
      så OneDrive-omdirigeret Desktop også fanges
    - Tilføj -Exclude "Public","Default" for at springe systemprofiler over
    - Anvendt i app/Install.ps1, Detect.ps1, Uninstall.ps1, SignOnly.ps1,
      SignOnly_detect.ps1, Clearsigning.ps1, sandbox.ps1

app/Install.ps1

@@ -34,16 +34,14 @@ function Write-Log {
 
 function Get-DesktopPaths {
     if ($AllUsers) {
-        # Return desktop path for each user profile found
-        Get-ChildItem "$env:SystemDrive\Users" -Directory | ForEach-Object {
-            $path = Join-Path $_.FullName "Desktop"
-            if (Test-Path $path) { $path }
+        Get-ChildItem "$env:SystemDrive\Users" -Directory -Exclude "Public","Default" | ForEach-Object {
+            Get-ChildItem $_.FullName -Directory -Filter "Desktop" -Depth 2 -ErrorAction SilentlyContinue |
+                Select-Object -ExpandProperty FullName
         }
     } else {
         [Environment]::GetFolderPath("CommonDesktopDirectory")
     }
 }
-
 try {
     $desktopPaths = Get-DesktopPaths
     Write-Log "Running in mode: $(if ($AllUsers) { 'All Users' } else { 'Public Desktop' })"