User-selected date formatting

[amazansky]

We should let the user select how they want to view dates all across the service. Personally, I'd much rather see something like Apr 30 (or 4/30) as the due date for my homework instead of 04/30/2020, as it conveys the same amount of information in a much smaller space.

Some considerations (more to be added later)

• We should let the user determine whether they want to see leading zeros or not (e.g. 04/02/2020 vs 4/2/2020)
• We should still display the year if the due date of the assignment is different from the current year.

[thatoddmailbox]

Would you still want date pickers to be displayed like "Thursday, April 30, 2020"? Or would that also take the overall date format? I guess we could have two date format options? That might get a little confusing though.

[amazansky]

We could have options for long date format and short date format?