In admin sidebar, hide empty app headers

[Alex Coates]

In the admin sidebar, when a filter is applied, app headers, that don't have any matching models, are still visible.
In project with a lot of apps, these app titles can consume all vertical space, leaving relevant models out of sight,
or just clutter the sidebar.

To improve user experience, I suggest that the headers for apps, that have no remaining models, should be hidden:

[Sarah Boyce]

Hi Alex! There may be reasons why these headers have been kept when #32204 was developed. Things that come to mind:

• the headers have an active state (with yellow and bold text) to indicate the region you are in - this could be lost when that header is hidden - do we mind?
• we need to define an empty state when nothing returns (having a completely blank sidebar is perhaps not so nice)

So next steps here would be to create a topic on the ​forum to discuss your idea with the community and gain consensus. There you'll reach a wider audience and likely get extra feedback.

I'll close the ticket for now, but if there is a community agreement on this, you are welcome to come back to the ticket and point to the forum topic, so we can then re-open it. For more details, please see ​the documented guidelines for requesting features.