Development: Update to Angular 20

[marlonnienaber]

Motivation and Context

This PR updates Artemis to Angular 20 and fixes broken client tests that resulted from the update.

Steps for Testing

Please choose one of the "feature clusters" listed below that was not yet tested and go through the most important screens/verify the most important functionality. Please check the feature cluster after your test.

Testserver States

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Review Progress

Code Review

• Code Review 1
• Code Review 2

Manual Tests

• Communication
• Lectures
• Courses
• User Management
• Programming Exercises
• Quiz Exercises
• Text Exercises
• File Upload Exercises
• Modeling Exercises
• Plagiarism
• Exam
• Communication

Summary by CodeRabbit

• New Features

  • Upgraded Angular framework and related libraries to version 20.x for improved stability and new capabilities.
  • Updated multiple third-party dependencies, including FontAwesome, Sentry, ngx-datatable, and ngx-charts, for enhanced compatibility and security.

• Bug Fixes

  • Adjusted type declarations and property resets in components for more robust state handling.
  • Improved test assertions and configurations by integrating the actual FontAwesome icon component and using Angular testing utilities.

• Refactor

  • Replaced deprecated Angular testing methods and mocks with updated practices, including switching from mocked to real icon components.
  • Enhanced type annotations for clearer code and maintainability.
  • Unified asynchronous test setups with a new helper function for consistent component initialization.
  • Modernized dependency injection by replacing constructor injection with Angular's inject() function in calendar-related components.
  • Updated test invocation styles for injection context and improved test element querying methods.

• Chores

  • Removed obsolete patch files related to graph components.
  • Updated dependency overrides for build tools and libraries to align with new versions.

[Predixx]

Tested file upload exercise. Worked for me as expected.

[jfr2102]

Tested creating and participating in a programming exercise via online code editor on ts1. Works as expected 👍

[tobias-lippert]

code

[jonas-de]

Tested creating and editing a quiz exercise with multiple question types as instructor and participation and practice as student (TS3). Everything works as expected

[badkeyy]

Tested communication on TS1. Everything works as expected. Code lgtm.

[MoritzSpengler]

Tested Quiz and Text exercises on TS3 as Instructor and Student. Everything works as expected.

[Jan-Thurner]

Tested Modelling exercises on TS3. Works as expected.

[LeZhen1105]

Tested User Management worked as expected.

[eylulnc]

Communication tested on TS2. works as expected

[HawKhiem]

I tested on TS3. I have tested the following:

1. Communication:
   ❌ When delete a message, then quickly undo the deletion, switch to another channel then come back, I noticed that the message is still deleted

Screen.Recording.2025-07-18.145103.mp4

✅ Everything else like pin message, edit message, save post or forward post, creating channels, direct chat, group chat, etc. works fine

2. Lectures
   ✅ Everything works as expected from creating lectures, add attachment, units, sending to Iris, hiding pages and downloading

3. Plagiarism
   ✅ Everything works as expected

[cremertim]

Also tested commuunication features, did not run into any error. Did not retest previously mentioned error, but i suspect it is not related to this PR

[eylulnc]

I tested on TS3. I have tested the following:

1. Communication:
   ❌ When delete a message, then quickly undo the deletion, switch to another channel then come back, I noticed that the message is still deleted

Screen.Recording.2025-07-18.145103.mp4
✅ Everything else like pin message, edit message, save post or forward post, creating channels, direct chat, group chat, etc. works fine

2. Lectures
   ✅ Everything works as expected from creating lectures, add attachment, units, sending to Iris, hiding pages and downloading
3. Plagiarism
   ✅ Everything works as expected

Agreed with Tim, @HawKhiem can you create a issue for this one?

[SindiBuklaji]

Tested Exam on Ts1. Everything works as expected 👍

[HawKhiem]

I tested on TS3. I have tested the following:

1. Communication:
   ❌ When delete a message, then quickly undo the deletion, switch to another channel then come back, I noticed that the message is still deleted

Screen.Recording.2025-07-18.145103.mp4
✅ Everything else like pin message, edit message, save post or forward post, creating channels, direct chat, group chat, etc. works fine

2. Lectures
   ✅ Everything works as expected from creating lectures, add attachment, units, sending to Iris, hiding pages and downloading
3. Plagiarism
   ✅ Everything works as expected

Agreed with Tim, @HawKhiem can you create a issue for this one?

Yes, I will do it right away

[marlonnienaber]

tested course and user management locally

[florian-glombik]

Tested the user management on ts3

• Added users to different user groups (student, tutor, editor, instructor)
• Created a new user (added and removed user groups)
• Search for user worked
• User can be deactivated / activated
• Can add and remove organization
• View / Edit works
• Filter in user overview works
• Import dialog opens (did not actually import users)
• Deleting user works