Scopes select-all to visible filtered list items

Enhances grid view selection to optionally target only visible items when a filter is applied, preventing accidental selection or deselection of hidden rows via the header checkbox. Updates the save logic to process the unfiltered master dataset, ensuring that previously selected but currently hidden items are safely preserved during save operations.

FFUDevelopment/FFUUI.Core/FFUUI.Core.Drivers.psm1

@@ -387,7 +387,10 @@ function Save-DriversJson {
         [psobject]$State
     )
     WriteLog "Save-DriversJson function called."
-    $selectedDrivers = @($State.Controls.lstDriverModels.Items | Where-Object { $_.IsSelected })
+
+    # Save from the master model list so filtered-out selected rows are preserved.
+    $driverSelectionSource = if ($null -ne $State.Data.allDriverModels) { $State.Data.allDriverModels } else { $State.Controls.lstDriverModels.Items }
+    $selectedDrivers = @($driverSelectionSource | Where-Object { $_.IsSelected })
 
     if (-not $selectedDrivers) {
         [System.Windows.MessageBox]::Show("No drivers selected to save.", "Save Drivers", [System.Windows.MessageBoxButton]::OK, [System.Windows.MessageBoxImage]::Information)