Missing `onGridSelectionChange` event trigger in `DataEditor`

[gab23r]

Today it is possible to select rows if the data_editor component with the row_markers prop, but there is no way to access the selected rows in the backend.

In glide data grid, you get the selected rows using onGridSelectionChange, but this event trigger is not wrapped.

[ElijahAhianyo]

@gab23r Thanks for bringing this up, I agree we should have this

[Ernelene]

Is there a timeline for when this will be added?

[picklelo]

@Ernelene Our team doesn't have bandwidth for this soon, but we will happily accept a PR implementing it. If it's just wrapping some missing props it shouldn't be too involved.