fix: resolve silent failures in AppX removal and PS7 DISM bugs (#4822)

* fix: resolve silent failures in AppX removal and PS7 DISM bugs

- Fixed a bug where Remove-AppxPackage failed silently in PowerShell 7 due to pipeline binding issues. We now explicitly loop through Get-AppxPackage results and pass PackageFullName directly.
- Added wildcard matching to Get-AppxPackage and Get-AppxProvisionedPackage to reliably locate packages regardless of short name vs family name variations.
- Offloaded Get-AppxProvisionedPackage and Remove-AppxProvisionedPackage execution to Windows PowerShell 5.1 (powershell.exe) to bypass PowerShell 7 DISM COM exceptions ("Class not registered") and performance hangs.
- Deduplicated AppX removal logic by calling Remove-WinUtilAPPX directly from Invoke-WPFAppxRemoval instead of copying the implementation.

* refactor(Remove-WinUtilAPPX): use script block to improve readability

* feat: enhance AppX removal process and add provisioned package removal function

* fix(tests): update AppX removal tests

This also adds tests for the new Remove-WinUtilProvisionedAPPX functionality

* Move AppX removal under Tweaks

* Address AppX removal review feedback

* Complete AppX removal error handling

* Prevent AppX cleanup confirmation prompts

---------

Co-authored-by: Chris Titus <contact@christitus.com>

functions/public/Invoke-WPFAppxRemoval.ps1

@@ -13,11 +13,13 @@ function Invoke-WPFAppxRemoval {
         $sync.ProcessRunning = $true
         Write-WinUtilLog -Component "AppX" -Message "Starting AppX removal for $(@($selected).Count) selected package(s)."
 
+        $packageList = [System.Collections.Generic.List[string]]::new()
+
         foreach ($key in $selected) {
             if ($key -eq "WPFAppxMicrosoft_XboxGamingOverlay") {
                 # Making sure Game Bar isn't running
                 Write-WinUtilLog -Component "AppX" -Message "Stopping GameBarFTServer before removing Xbox Gaming Overlay."
-                Stop-Process -Name GameBarFTServer
+                Stop-Process -Name GameBarFTServer -Force -Confirm:$false -ErrorAction SilentlyContinue
 
                 # This stops annoying ms-gamebar popup when launching games.
                 Write-WinUtilLog -Component "AppX" -Message "Disabling Game DVR capture before removing Xbox Gaming Overlay."
@@ -25,14 +27,14 @@ function Invoke-WPFAppxRemoval {
             }
 
             if ($key -eq "WPFAppxMicrosoft_WindowsNotepad") {
-                # i hope your having fun reading this
                 Write-WinUtilLog -Component "AppX" -Message "Stopping dllhost before removing Notepad."
-                Stop-Process -Name dllhost
+                Stop-Process -Name dllhost -Force -Confirm:$false -ErrorAction SilentlyContinue
             }
 
             Write-Host "Removing $($apps[$key].Content)"
             Write-WinUtilLog -Component "AppX" -Message "Removing $($apps[$key].Content) ($($apps[$key].PackageId))."
-            Get-AppxPackage -Name $apps[$key].PackageId -AllUsers | Remove-AppxPackage -AllUsers
+            Remove-WinUtilAPPX -Name $apps[$key].PackageId
+            $packageList.Add($apps[$key].PackageId)
 
             if ($key -eq "WPFAppxMSTeams") {
                 # Uninstalls Microsoft Teams Meeting Add-in for Microsoft Office
@@ -41,6 +43,10 @@ function Invoke-WPFAppxRemoval {
             }
         }
 
+        if ($packageList.Count -gt 0) {
+            Remove-WinUtilProvisionedAPPX -PackageList $packageList.ToArray()
+        }
+
         Write-Host "================================="
         Write-Host "--   AppX Removal Finished   ---"
         Write-Host "================================="