code: function focusToCell(sq, $cell, tableMgr) {
    const nextFocusCell = $cell.get(0);
  
    if ($cell.length && $.contains(document, $cell)) {
      const range = sq.getSelection();
      range.selectNodeContents($cell[0]);
      range.collapse(true);
      sq.setSelection(range);
  
      tableMgr.setLastCellNode(nextFocusCell);
    }
  }
docs: Focus to given cell
  @param {Squire} sq - Squire instance
  @param {jQuery} $cell - jQuery wrapped table cell
  @param {object} tableMgr - Table manager instance