"Integrating QML and C++" needs to be reworked or removed

https://doc.qt.io/qt-6/qtqml-cppintegration-topic.html is basically a mini-tutorial. It has the following isssues:

• the title is too generic, and it "steals" the best place in search engines. When searching for integrating QML and C++, it would be better if users end up at https://doc.qt.io/qt-6/qtqml-cppintegration-overview.html
• it only mentions qmake, not cmake
• the focus of the tutorial is extremely narrow, only focusing on exposing a single object
• the tutorial is QtCreator specific; we may want to generalize it. Moreover, it mentions  the "With ui.qml file" which afaik no longer exists.

Given the various issues, and the fact that https://doc-snapshots.qt.io/qt6-dev/qtqml-tutorials-extending-qml-example.html exists, it is unclear to me whether we want to keep the page.