List groups that prevent code suggestion feature

What does this MR do and why?

List groups that prevent code suggestion feature

As users have no insights into which group prevents the code suggestion feature, this adds an alert to the preference page listing all groups that prevent the code suggestion feature.

Issue: #425686

Screenshots or screen recordings

Without prevention	With one prevention	With multiple preventions

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

MR acceptance checklist

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