Inconsistent documentation of boxes

[vyasr]

Docstrings for constructors and methods accepting boxes need to be systematically updated to reflect that they accept any valid input to freud.Box.from_box, not just box objects.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[github-actions]

This issue has been automatically closed because it has not had recent activity.