The homework page doesn't use the course abbreviation.

[Jonas-Sander]

Describe the bug

Homeworks shown in the homework page don't use the abbreviation of the course but rather uses the first characters of the name of the course.

Steps to reproduce the bug

1. Go to groups page
2. Create a course with the subject "Language studies" and abbreviation "LS".
3. Go to homework page
4. Create a homework for the course "Language studies"

Current broken behavior

The abbreviation (inside the circular avatar of the homework card) is "La" (first two characters of course name).

Expected behavior

The abbreviation should be "LS" instead.

Screenshots, videos or logs

Tested device

• Device: PC
• App type: Web app
• OS: Windows 10
• App version: 1.6.2 (316)

Additional context

Original issue: https://gitlab.com/codingbrain/sharezone/sharezone-app/-/issues/1201