VaDataTable rows (of type TableRow) are generated based on initialIndex instead of id

[RVitaly1978]

Vuestic-ui version: 1.4.1

Now we generate the TableRow items in this way.:

const buildTableRow = (source: ITableItem, initialIndex: number, columns: TableColumn[]): TableRow => ({
  source,
  initialIndex,
  cells: columns.map(column => buildTableCell(initialIndex, column, source)),
})

const rowsComputed = computed(() => {
  return props.items.map((rawItem, index) => buildTableRow(rawItem, index, columns.value))
})

And our row selection is based on source instead of id. This will break the selection when shuffling the items array.
We should use id instead of source if the elements have an appropriate key