Start to use curve renderer to Qt 6.7

Start to use curve renderer to Qt 6.7
https://doc.qt.io/qt-6/qml-qtquick-shapes-shape.html#rendererType-prop

Qt 6.6 supports Shape.CurveRenderer we should start to use it but we have to stay compatible with Qt 6.5 and lower.

We can check if preferredRendererType is defined.

if yes use it and disable midmapping.
if not use the old approach