Calendar/DayDelegate: Fix hover after porting to QQC2 Highlight
In the new PlamaExtras.Highlight component, the property is no longer `hovered`, but `hover`. This fixes the calendar and clocks applets, which were failing to load.
In the new PlamaExtras.Highlight component, the property is no longer `hovered`, but `hover`. This fixes the calendar and clocks applets, which were failing to load.
mentioned in commit ba709e14