Make better code structure for border handlers

Sine Striker

2023-12-13 a51b5688e1c33d3ce96b48c869603b00f908f513

 src/widgets/CMakeLists.txt

@@ -10,10 +10,12 @@
    widgetwindowagent.h
    widgetwindowagent_p.h
    widgetwindowagent.cpp
    contexts/widgetwindowcontext_p.h
    contexts/widgetwindowcontext.cpp
)

if(WIN32)
    list(APPEND _src widgetwindowagent_win.cpp)
endif()

qwk_add_library(${PROJECT_NAME} AUTOGEN
    SOURCES ${_src}
    LINKS QWKCore