Discussion: Error message to display when quota is 0
MR: Pending
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## Description
The following discussion from !141376 should be addressed:
- [ ] @vtak started a [discussion](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/141376#note_1724647515): (+1 comment)
> Thanks @a_akgun . Overall, LGTM. Just a couple of questions/comments before we move ahead on this.
>
> I noticed the following while exploratory testing this
>
> - `workspaces_quota` and `workspaces_per_user_quota` respected.
> - When the value for these quota is 0, the message sounds odd. (Check screenshot). Let's create a followup and tag our Design counterpart to see what their thoughts are.
> 
> 
>
> So functionality wise, it works as advertised :thumbsup:
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