This was a private request for roundtable event usage. It’s also a
common feature request, so I decided to spend a bit of time getting this
working well-enough.
https://github.com/user-attachments/assets/acceb57f-2979-43d0-9fc2-33e977bd2dd5
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### Delay loading spinner / loading layer initial load briefly to avoid
flickering
There's cases in this overlay where loading takes a few milliseconds.
The loading spinner gets annoying. This also happens elsewhere, so this
could be considered a global fix. Separate PR? probably...
### Ingest loading state of dashboard child content to show more correct
loading layer
Each display had their own loading layer implementation, but this is
already too deep (inside the scroll content) and doesn't display great
when for instance, results don't take up the full screen height.
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Co-authored-by: Bartłomiej Dach <dach.bartlomiej@gmail.com>
Dean Herbert