User score overview

[florian-jaeger]

Is your feature request related to a problem? Please describe.
As a student, I want to see my current scores of all my assignments.

Describe the solution you'd like
New view in the assignment tab which shows scores

[meffmadd]

We should use the points column in assignments table for this and implement it as intended.

[meffmadd]

I implemented the scores as an item in the assignment card and as secondary text in the submission list. Closing this issue for now.