[Calendar] Entry Published/Unpublished Identifier

Problem statement:

Difficulty knowing if an assignment that is on the calendar has been published or not. Teachers see EVERYTHING but can't tell if they have published them for the students.

Proposed solution:

Add a "dot" or some kind of symbol or color difference to note whether assignments that are on the calendar (when in calendar view) are published and visible to students.

User role(s):

instructor