refactor(wayland): seperate cmake files for modularity

src/core/CMakeLists.txt

@@ -0,0 +1,31 @@
+qt_add_executable(quickshell
+	main.cpp
+	shell.cpp
+	variants.cpp
+	rootwrapper.cpp
+	proxywindow.cpp
+	reload.cpp
+	rootwrapper.cpp
+	qmlglobal.cpp
+	qmlscreen.cpp
+	watcher.cpp
+	region.cpp
+	persistentprops.cpp
+	shellwindow.cpp
+)
+
+qt_add_qml_module(quickshell URI QuickShell)
+
+# qml type registration requires this
+target_include_directories(quickshell PRIVATE src/core)
+
+target_link_libraries(quickshell PRIVATE Qt6::Gui Qt6::Qml Qt6::Quick Qt6::QuickControls2)
+
+if (LAYERSHELL)
+	find_package(LayerShellQt REQUIRED)
+
+	target_link_libraries(quickshell PRIVATE LayerShellQtInterface)
+	target_compile_definitions(quickshell PRIVATE CONF_LAYERSHELL)
+
+	target_sources(quickshell PRIVATE layershell.cpp)
+endif()