To get around the javascript issue; having navigation, user settings, and nodelets opened on page load could be a setting in Nodelet Settings (see my pen). If the user selects to have a box opened, the following attribute will be added to the details element.

<!-- normal -->
<details>
  <summary>Summary of details</summary>
  Details content.
</details>

<!-- open -->
<details open>
  <summary>Summary of details</summary>
  Details content.
</details>
[download]

Those three details elements could be open by default, and the user would have to deselect the option, or not.