CLONE - A teacher can filter by 'Granted extension'

Test prerequisites:

This test requires a course with an assignment set up and at least 5  students.

1. As a teacher, access the assignment and click View all submissions.
2. Select a student; click the Edit column and grant them an extension. Repeat for a second student. Save the changes.
3. Return to the assignment grading screen, scroll down to Options and access the filter.
4. Filter by 'Granted extension'
5. Verify your two students are listed as having extensions granted.
6. Change the filter back to None and verify all students are now displayed.
7. Do the following steps with both Boost and Clean themes
8. Now return to the grading screen and click the Grade button for one of the students with an extension granted.
9. From their grading annotation screen, click the filter top right (under the user selector) and verify the Granted extension filter works as expected.
10. Switch to the other student with an extensino and verify again.
11. Clear the filter and verify all students are now available.