Cell constructor
      const
      Cell({})
     
    
    
Implementation
const Cell({
  super.key,
  required this.row,
  required this.column,
  this.rowSpan = 1,
  this.columnSpan = 1,
  required super.child,
})  : _implicitly = false,
      assert(rowSpan > 0),
      assert(columnSpan > 0);