message: fixed header row height
diff: @@ -242,6 +242,7 @@ function Table(props: Props) {
  <Suspense fallback={<div>Loading table...</div>}>
  <DraggableContainer onHeaderDrop={onHeaderDrop}>
  <ReactDataGrid
  + headerRowHeight={45}
  rowHeight={rowHeight}
  columns={columns}
  rowGetter={i => rows[i]}
  