function navigateDown(oTable, oEvent) {
		if (!_canNavigateUpOrDown(oTable, oEvent)) {
			return;
		}

		const oCellInfo = TableUtils.getCellInfo(TableUtils.getCell(oTable, oEvent.target));

		if (oCellInfo.isOfType(CellType.ANYCOLUMNHEADER)) {
			_navigateDownOnHeader(oTable, oCellInfo, oEvent);
		} else if (oCellInfo.isOfType(CellType.ANYCONTENTCELL)) {
			_navigateDownOnContent(oTable, oCellInfo, oEvent);
		}
	}
Moves the focus one row down, but stays in the same column. The focus is set to the cell, or the first interactive element inside that cell.
The table is scrolled if necessary.

@param {sap.ui.table.Table} oTable Instance of the table.
@param {jQuery.Event} oEvent The keyboard event object.