QQuickMonthGrid uses QDate for Cell instead of QDateTime despite documentation recommending QDateTime

In QQuickMonthGrid.cpp, the value of the cell is represented by a QDate.

However, Qt's own documentation suggests the use of QDateTime. See the following page and the excerpt below. https://doc.qt.io/qt-6/qml-date.html

"When integrating with C++, note that any QDate or QDateTime value passed into QML from C++ is automatically converted into a date value, and vice-versa. Note, however, that converting a QDate will result in UTC's start of the day, which falls on a different date in some other time-zones. It is usually more robust to convert the QDate via a QDateTime explicitly, specifying local-time or a relevant time-zone and selecting a time of day (such as noon) that reliably exists (daylight-savings transitions skip an hour, near one end or the other of a day)."

This bug likely relates to this one: https://bugreports.qt.io/browse/QTBUG-72208