Communication: Links without labels are not visible in posts

[asliayk]

Describe the bug

When adding a Markdown link without a label, e.g.,[](https://google.com), the message appears empty. The link itself is not displayed, making it invisible in the chat.

To Reproduce

1. Go to the Communication section of a course.
2. Open a random channel and try to send a message with a link, but without a label.
3. Send the message and observe that the link is invisible.

Expected behavior

If a link has no label, it should display the url itself, just like in Slack.

Screenshots

link without label is not seen

Which version of Artemis are you seeing the problem on?

7.9.2

What browsers are you seeing the problem on?

Chrome

Additional context

No response

Relevant log output

[badkeyy]

This is not that easy to implement as Artemis relies on markdown-it to render markdown in html and the links are not rendered in there.