Implement mainwindow example

Sine Striker

2023-12-05 f8975a7d449bac21a2fdbc1a8ca85d1f5b99b362

 src/core/CMakeLists.txt

@@ -6,10 +6,12 @@
set(_src
    qwkcoreglobal.h
    qwkcoreglobal_p.h
    qwkcoreglobal.cpp
    corewindowagent.h
    corewindowagent_p.h
    corewindowagent.cpp
    windowitemdelegate.h
    windowitemdelegate.cpp
    contexts/abstractwindowcontext_p.h
    contexts/abstractwindowcontext.cpp
)