Make the options which can be used to control Qt Quick Compiler easier to find

There are multiple options available to control various aspects of QML compilation. Almost of of them are documented in https://doc.qt.io/qt-6/qt-add-qml-module.html#caching-compiled-qml-sources . For a regular Qt user it is hard to find this place, since the correlation of "caching" and "compilation" and the use of C++ code generation for this is not a common sense knowledge for a regular Qt Quick developer.

Moreover the section https://doc.qt.io/qt-6/qt-add-qml-module.html#caching-compiled-qml-sources is not linked on https://doc.qt.io/qt-6/qtqml-qtquick-compiler-tech.html , neither on any pages it links

Please make sure that the information about these options is easy to find.