Fixed namespace tests
Add test for favorite tasks
Fix favorite tasks not being updated
Fix integration tests
Fix lint
Return a pseudo namespace and list for favorites
Make sure users can only see their favorites
Add condition show tasks from the favorites list
Regenerate swagger docs
Add favorite field to task
Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/api/pulls/653
