Canvas location lock improvement.

Currently when the canvas location is locked and the user zooms in or out using a mouse the location lock is broken because the position of cursor also changes while zooming
Initial work plan: When the canvas location is locked the cursor placement will not change while zooming in or out.

src/qml/MapCanvas.qml

@@ -441,6 +441,8 @@ Item {
     grabPermissions: PointerHandler.CanTakeOverFromHandlersOfDifferentType | PointerHandler.ApprovesTakeOverByItems
 
     onWheel: event => {
+      if (gnssButton.followActive)
+        gnssButton.followActiveSkipExtentChanged = true;
       if (event.angleDelta.y > 0) {
         zoomIn(point.position);
       } else {