Added work group center foreign key column to Machine export and import functionality with validation and error handling

app/Filament/Exports/MachineExporter.php

@@ -30,6 +30,8 @@ class MachineExporter extends Exporter
                 ->label('MACHINE'),
             ExportColumn::make('work_center')
                 ->label('WORK CENTER'),
+            ExportColumn::make('workGroupMaster.name')
+                ->label('WORK GROUP CENTER'),
             ExportColumn::make('created_at')
                 ->label('CREATED AT'),
             ExportColumn::make('updated_at')