code: function getWeeks(dates) {
    const weeksLength = Math.ceil(dates.length / 7);
    const weeks = [];
    for (let i = 0; i < weeksLength; i++) {
      weeks[i] = [];
      for (let x = 0; x < 7; x++) {
        weeks[i].push(dates[i * 7 + x]);
      }
    }
    return weeks;
  }
docs: Takes an array of dates, and turns them into a multi dimensional
  array with 7 entries for each week.
  @param {Array.<Object>} dates An array of dates
  @returns {Array} The weeks as a multi dimensional array