Printer constructor
      const
      Printer({})
     
    
Create a printer information
Implementation
const Printer({
  required this.url,
  String? name,
  this.model,
  this.location,
  this.comment,
  bool? isDefault,
  bool? isAvailable,
})  : name = name ?? url,
      isDefault = isDefault ?? false,
      isAvailable = isAvailable ?? true;