Add second URL for current group f repo

[sebseb10]

This is in regards to us in Group F, having made a second repo which is with the Chirp (C#) project.

[Copilot]

Pull request overview

Updates the repository registry to include an additional GitHub URL for Group F (Chirp/C# repo), so downstream tooling/pages can reference the correct project locations.

Changes:

• Adds a second repository URL for the Group F entry in GROUP_REPOS.

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[Copilot]

The group f entry is syntactically invalid: you’ve added a second list expression (["..."]) instead of adding a second URL inside the existing URL list, and there’s also a missing comma before the following FrontEndURL string. This will break parsing/import of repositories.py. Update this entry to keep a single URL list (e.g., two strings inside the same list) and ensure it ends with a trailing comma before the next field.

Suggested change

	["https://github.com/Afab1311/MiniTwit-gruppe1"], ["https://github.com/sebseb10/ITU-MiniTwit"]
	["https://github.com/Afab1311/MiniTwit-gruppe1", "https://github.com/sebseb10/ITU-MiniTwit"],

[PatNei]

1. Are you trying to add another repository for your group to the file ? If so please follow valid Python syntax.

2. If you are trying to replace the repository then make sure that there are not two repository in the file.

See this pull request if you are unsure what i mean. #666