day planner view: fix activity indicator sometimes still animating after events were loaded
day planner view: fix activity indicator sometimes still animating after events were loaded

arnaudWasappli/Calendar,patrickHelmedica/Calendar,Sol88/Calendar,kriskelly/Calendar,norary3/DewDateCalendar,george-zergy/Calendar,norary3/DewDateCalendar,kriskelly/Calendar,jumartin/Calendar