Completed courses should be shown under "My courses" also in Nav drawer, as they are listed in Navigation block.

This happens when using Boost-based themes.

Reproduction steps:

1. Turn on completion in a course
2. Set up a few activities with activity completion
3. Log in as a student and complete all the activities

Expected result:

• The course remains in My courses so the student can see their results and work towards exams, etc.

Actual result:

• The course disappears as it is judged to be no longer current.