Auto-approve course applications

In this release

• Improved
  Auto-approve course applicationsCourses with an application survey can approve applicants automatically. Free, unscheduled courses enroll them right away.
• Improved
  New course collaborators tablePick each collaborator's role and student access from dropdowns, set their email notifications from a bell, and resend invites or reassign students from a row menu.
• Improved
  Archive students without a certificateInstructors and Network Admins can archive an enrolled student without issuing a certificate, see them in a new Archived tab, and restore them.
• Fixed
  Formatting kept in comments and feedbackComments and feedback keep their formatting across the old and new editors.
• Fixed
  Layout fixesObservation sidebar fits small screens, survey responses fill the popup, and course cards show categories as tags.

Part of the October round-up