Required sections missing warning

[vicksey]

We should add a gentle warning system when a user adds a course but hasn’t selected all the required sections. For example, a user has added a lecture but not the corresponding required discussions or labs.

I was thinking some sort of mild “!” sign or highlighting of the course with missing required sections on the Added Pane.

e.g. this ICS53 is missing a required Lab section

This would be preferred over doing it in the Search Pane, as it would be annoying to have a flickering warning appear while a user is quickly clicking around to see which discussion or lab fits best.

A simple tooltip or light yellow/orange highlight with text like “This course is missing a required section.” would be enough for the user to realize their mistake and go back to the Search Pane.