Plagiarism checks: Add direct link to case view

[AjayvirS]

Checklist

General

• I tested all changes and their related features with all corresponding user types on a test server.
• 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 (e.g. using paging).
• I strictly followed the client 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 added multiple screenshots/screencasts of my UI changes.

Motivation and Context

Fixes #5974 .

In plagiarism cases' page should be a link to view directly the plagiarism detection for the exercises. This issue adds a link for every plagiarism case to the plagiarism detection view for that exercise.

• Note: as discussed with @MarkusPaulsen and @rabeatwork , this issue was modified to have link near the exercise name instead of the "Appears in x comparison(s)" link for grouped plagiarism submissions of an exercise. The motivation is that every "Appears in..." of one exercise links to the same plagiarism detection view of the exercise, making it redundant.

Description

A routerLink was added to the plagiarism detection view, enabling navigation to the respective course and exercise based on their IDs. A new class was introduced to group plagiarism cases by exercise, improving clarity and organization. Additionally, tests were implemented to verify the functionality of the routerLink.

Steps for Testing

Prerequisites:

• 1 Instructor
• 2 Students
• At least 2 Exercises (any type) which trigger plagiarism detection

Testing:

1. Login as instructor and navigate to the assessment dashboard
2. Go to the plagiarism cases view
   3. Click on the linked "Appears in x comparison(s)" text*
3. Click on the Exercise name which is linked to the plagiarism detection view for that exercise
4. Verify if the plagiarism detection view is correctly linked

• Note: as discussed with @MarkusPaulsen, this issue was modified to link the exercise title instead of the "Appears in x comparison(s)" for every plagiarism submission of an exercise. The motivation is that every "Appears in..." of one exercise links to the plagiarism detection for the same exercise, making it redundant.

Code Review

• Code Review 1
• Code Review 2

Manual Tests

• Test 1
• Test 2

Test Coverage

Class/File	Line Coverage	Confirmation (assert/expect)
plagiarism-cases-instructor-view.component.ts	97%	✅

Screenshots

Summary by CodeRabbit

Release Notes

• New Features

  • Enhanced navigation in the plagiarism cases instructor view, allowing users to click through to relevant plagiarism detection pages.
  • Improved display of plagiarism submission counts with dynamic IDs for better tracking.
  • Introduced a new structure for grouping plagiarism cases by exercise, enhancing organization and clarity.
  • Added optional chaining for better error handling in student properties.

• Style

  • Introduced new styles for text elements, including hover effects to improve user interaction feedback.

• Tests

  • Expanded test coverage for navigation functionality and user interactions, ensuring robust validation of the component's features.

Summary by CodeRabbit

Release Notes

• New Features

  • Enhanced instructor view for plagiarism cases with improved navigation and interactivity.
  • Added functionality to view comparisons of plagiarism cases in both English and German.

• Bug Fixes

  • Improved error handling for undefined student properties in plagiarism cases.

• Style

  • Introduced new styles for better visual feedback on hover actions.

• Tests

  • Expanded test suite to include routing capabilities and additional user interaction scenarios.

• Documentation

  • Updated translation files to include new keys for viewing comparisons.

[HawKhiem]

Tested on TS4. Works as described

[eceeeren]

Hello, can you give a bit more info on how to trigger the plagiarism detection in the test steps?

[az108]

Overall looks good to me , just one small comment

[magaupp]

Tested on TS2. Link works as expected.

[coolchock]

tested in testing session, works as expected

[sachmii]

Tested on TS2, reapprove

[az108]

Code reapprove 👍

[HawKhiem]

Reapprove

[MarkusPaulsen]

Code looks good

[Cathy0123456789]

Tested on TS2. Works as expected.