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### Issue Details

* **Electron Version:**
  * all (according to docs), tested in 2.0.18 & 4.1.3
* **Operating System:**
  *  Windows

### Expected Behavior
To be able to set the working directory for applications started from the windows jump list

### Actual Behavior
It defaults to c:\windows\system32

### To Reproduce
Not really anything to do to reproduce, just look at the documentation, the parameter isn't there:
https://electronjs.org/docs/api/structures/task
https://electronjs.org/docs/api/structures/jump-list-item

### Additional Information
I'm not entirely sure you will agree that this is a bug but afaict the api seems to replicate what the underlying windows api provides so I assume it's an oversight that this parameter in particular is missing - especially considering how problematic it can be for applications to have c:\windows\system32 as their cwd.
atom/browser/ui/win/jump_list.cc
LOG(ERROR) << "Can't append separator to Jump List category "
                     << "'" << category.name << "'. "
                     << "Separators are only allowed in the standard 'Tasks' "
                        "Jump List category.";
          result = JumpListResult::CUSTOM_CATEGORY_SEPARATOR_ERROR;
        }
        break;
      case JumpListItem::Type::FILE:
        if (AppendFile(item, collection))
          ++appended_count;
        else
          LOG(ERROR) << "Failed to append '" << item.path.value()
                     << "' "
                        "to Jump List.";
        break;
    }
  }
  if (appended_count == 0)
    return result;
  if ((static_cast<size_t>(appended_count) < category.items.size()) &&
      (result == JumpListResult::SUCCESS)) {
    result = JumpListResult::GENERIC_ERROR;
  }
  CComQIPtr<IObjectArray> items(collection);
  if (category.type == JumpListCategory::Type::TASKS) {
    if (FAILED(destinations_->AddUserTasks(items))) {
      LOG(ERROR) << "Failed to append items to the standard Tasks category.";
      if (result == JumpListResult::SUCCESS)
        result = JumpListResult::GENERIC_ERROR;
    }