GET /user should send max grade

[ning-y]

The max grade sent by GET /user should be the total maximum grade achievable by that particular user (i.e. the max grade of all submitted assessments by that user), and will be used in conjunction with the already implemented grade field of GET /user to render a grade progress bar for the user in the frontend.

[indocomsoft]

Only submitted and not open assessments right?

[ning-y]

Yep