DataTable.Expander predicate implemented with reversed logic

[darko-poljak]

Basic information

• Tiller version:
  current
• Module:
  DataTable.Expander

Bug description

DataTable.Expander predicate is implemented with reversed logic.

With <DataTable.Expander predicate={(x) => true}> row is NOT expandable,
but with <DataTable.Expander predicate={(x) => false}> it is.