@ mention of reviewers`

@bbearce`

Summary

Codabench is too slow to load. We need to speed up the public competitions page load speed.

I took the actual change from #1373, and removed the CircleCI problem fix which are already present in #1375.

Use automation code from wiki (linked in issue 1327) to create lots of competitions
Publish all challenges

docker compose exec django bash
python manage.py shell_plus
comps = Competition.objects.all()

for i in comps:
    i.published = True
    i.save()