As an admin, I can't view the Sub Task Manager (add-on) project-specific templates in the sidebar with Navigation v2 enabled

Summary

In the updated navigation left sidebar, if the Cloud instance has the Sub Task Manager add-on, admins are unable to access the project-specific templates they had previously created.

Steps to Reproduce

1. Pre req 1: Be sure your instance is using the updated navigation left sidebar;
   
2. Pre req 2: Be a Jira admin of that instance;
3. Pre req 3: Have the "Sub Task Manager" add-on installed;
4. Access a project.

Expected Results

• The project-specific templates from "Sub Task Manager" should be accessible in the left sidebar by the admin clicking the "Add-ons" sub menu.

Actual Results

• There is no "Add-ons" sub menu, so admins can't access the project-specific templates from "Sub Task Manager".

Workaround(s)

1. If needed, create a globally available template;
2. Open a support ticket at support.atlassian.com.