How are people tracking selection state in `LazyCo...

# compose

[Kirill Grouchnikov]

How are people tracking selection state in LazyColumn? Something like this multi-column layout (which might be for tablets on Android, or for larger screens on desktop) where the middle column is a lazily loaded list of articles / emails / etc, and the right column is the full detail of the selected element.

[Erlan Amanatov]

Save selected item as State, middle column observes that Stste