SAK-50358 Responsiveness of Assignment and Chat Room tools

[i-a-m-s-k]

Made the multiselect responsive for longer group names.

[ottenhoff]

but now once you select a very long group, it goes wider than the screen.

[i-a-m-s-k]

I'll check that, thanks for the review.

[i-a-m-s-k]

@ottenhoff I have added a function that makes the button text constant and not replace it with the selected options (as seen previously). Please review it, thank you.

[ottenhoff]

I don't know if this is an improvement or not. We can discuss on a core call.

Now, when editing an assignment, when i have several groups selected, here is what the user sees:

I think my vote is that this is not an improvement. "You must select" is telling me that I need to perform an action even though I have already selected groups.