title: dayGridMonth cells height to be limited
body: <p>I played with height and contentHeight, but no success.</p>
  
  <p>With FullCalendar V4, is it possible to "squeeze" dayGridMonth cells vertically in order to avoid a empty  space left below cells not fully filled (depending thus on cell with most events in that row) but, at the same time, avoiding a lift bar appearing on the right in cases where the number of monthly events implies to have a greater value than defined height value.</p>
  
  <p>Thx,</p>