[FIX] m.PlanningCalendar: Flickering fixed
[FIX] m.PlanningCalendar: Flickering fixed

PC won't be rendered when _applyContextualSettings is initially
called, causing the media range to be between 0 and 1024px even
on larger screens, which would cause flickering after the control
is resized after rendering. Other controls implementing
_applyContextualSettings for suppresing width propagation use
ManagedObject's _defaultContextualSettings object, so it should
be used in PC as well.

Change-Id: Ieee67b4f599225b46740f917d921f485f984554b
BCP: 1880613868

SAP/openui5,SAP/openui5,SAP/openui5,SAP/openui5