Update _team_form.html.erb
Update _team_form.html.erb

Now admin can edit the project levels at ease.

Will further work into updated info by Dr. Zhao: "Perhaps it also make sense for the swap status to lock the editing even for the admins. But the lock should definitely not affect the team creation."

nusskylab/nusskylab,nusskylab/nusskylab,nusskylab/nusskylab,nusskylab/nusskylab