WIP: prepare border painter

Yuhang Zhao

2023-12-11 5c471560256776f17f1e3d5c377c7d3e9fdcc0f1

 src/core/CMakeLists.txt

@@ -14,8 +14,6 @@
    windowitemdelegate.cpp
    kernel/nativeeventfilter.h
    kernel/nativeeventfilter.cpp
    kernel/sharedeventfilter.h
    kernel/sharedeventfilter.cpp
    contexts/abstractwindowcontext_p.h
    contexts/abstractwindowcontext.cpp
)