Iris: Messages cannot be marked in the text field

[laxerhd]

Describe the bug

As shown in the video, moving the entire Iris tab takes precedence over highlighting/marking the text in the fields. This also applies to messages that have already been sent and to replies from Iris.

To Reproduce

1. Create a course implementing Iris
2. Write a message
3. Try to mark the message with the cursor

Expected behavior

Moving/scaling the window should only be possible in the top bar of Iris.
It should be possible to select text with the cursor in order to copy/delete larger sections of text.

Screenshots

iris-window-not-marked.mp4

Which version of Artemis are you seeing the problem on?

7.7.1

What browsers are you seeing the problem on?

Chrome, Microsoft Edge, Firefox, Other (specify in "Additional context")

Additional context

This should not be a browser specific bug.

Relevant log output

No response