Fix unit tests for the "New Review Request" page.
Review Request #12152 — Created March 14, 2022 and submitted
The change to make filtering run server-side on the new review request
page broke some unit tests. We had several that listed out the expected
context data, which has changed somewhat. These have been updated. We
also had some JS tests to test the filtering, but because that filtering
now happens server-side, those no longer make sense. That same
functionality is now covered by the tests for the
Ran python and JS unit tests.