General: Add missing details to course detail view in course management

[milljoniaer]

Checklist

General

• This is a small issue that I tested locally and was confirmed by another developer on a test server.
• Language: I followed the guidelines for inclusive, diversity-sensitive, and appreciative language.
• I chose a title conforming to the naming conventions for pull requests.

Client

• Important: I implemented the changes with a very good performance, prevented too many (unnecessary) REST calls and made sure the UI is responsive, even with large data.
• I followed the coding and design guidelines.
• Following the theming guidelines, I specified colors only in the theming variable files and checked that the changes look consistent in both the light and the dark theme.
• I documented the TypeScript code using JSDoc style.
• I added multiple screenshots/screencasts of my UI changes.
• I translated all newly inserted strings into English and German.

Motivation and Context

There have been some details missing in the course detail page. This PR adds this missing information.

Steps for Testing

Prerequisites:

• 1 Instructor
• 1 course

1. Log in to Artemis
2. Navigate to Course Detail View
3. Verify that all necessary details of the course are displayed

Review Progress

Performance Review

• I (as a reviewer) confirm that the client changes (in particular related to REST calls and UI responsiveness) are implemented with a very good performance
• I (as a reviewer) confirm that the server changes (in particular related to database calls) are implemented with a very good performance

Code Review

• Code Review 1
• Code Review 2

Manual Tests

• Test 1
• Test 2

Screenshots

[milljoniaer]

Thank you for your feedback, I implemented it, please have another look at the changes.

[julian-christl]

Consider only showing the organisation section if there are any assigned to the course
Tested on TS 4, CR approved

[max-bergmann]

Tested in testing session - changes mainly looks good to me

[julian-christl]

Your build fails due to a client build error; the server tests also failed, I just reran them to be sure.

[dearjasmina]

Tested on ts1, changes look good
The server tests fail, as soon as that's resolved you can contact me for approval (I've seen that the server tests fail in multiple PRs so maybe its another problem?)

[milljoniaer]

I fixed the client build and since this PR does not include any server changes, I guess the falling tests are not connected to this PR.

Please have another look at the PR.

[b-fein]

Thanks, code looks good now.

[JanaNF]

Manual tested on legacy ts2. Worked as expected

[Gusti2010]

Manual tested on Ts3. Everything works as expected!

[julian-christl]

Reapprove

[Strohgelaender]

code lgtm, just one optional (non-blocking) comment: