doc: fix reference to nonexistent DragHandler.SnapNever

The documentation mentions SnapNever as a value for DragHandler SnapMode
The correct value is NoSnap. Amends
f228af0

Pick-to: 6.7 6.5 6.2 5.15
Change-Id: I240d63b5ac989d37f2b7a611cab75ccd4bab2368
Reviewed-by: Shawn Rutledge <[email protected]>
(cherry picked from commit 33b99d6)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>

Author: oKcerG

src/quick/handlers/qquickdraghandler.cpp

@@ -99,7 +99,7 @@ void QQuickDragHandler::onGrabChanged(QQuickPointerHandler *grabber, QPointingDe
     The snap mode configures snapping of the \l target item's center to the \l eventPoint.
 
     Possible values:
-    \value DragHandler.SnapNever Never snap
+    \value DragHandler.NoSnap Never snap
     \value DragHandler.SnapAuto The \l target snaps if the \l eventPoint was pressed outside of the \l target
                                 item \e and the \l target is a descendant of \l {PointerHandler::}{parent} item (default)
     \value DragHandler.SnapWhenPressedOutsideTarget The \l target snaps if the \l eventPoint was pressed outside of the \l target