Flatpak fix Qt6.8 (#5762)

* Update CMakeLists.txt

* Update CMakeLists.txt

* Update CMakeLists.txt

Author: RensDofferhoff

Desktop/CMakeLists.txt

@@ -119,10 +119,7 @@ target_link_libraries(
     Qt::OpenGL
     Qt::Widgets
     Qt::Qml
-    $<$<NOT:$<BOOL:${FLATPAK_USED}>>:Qt::WebEngineQuick>
-    $<$<BOOL:${FLATPAK_USED}>:/app/lib/$ENV{FLATPAK_ARCH}-linux-gnu/libQt6WebEngineQuick.so>
-    $<$<BOOL:${FLATPAK_USED}>:/app/lib/$ENV{FLATPAK_ARCH}-linux-gnu/libQt6WebEngineCore.so>
-    $<$<BOOL:${FLATPAK_USED}>:/app/qml/QtWebEngine/libqtwebenginequickplugin.so>
+    Qt::WebEngineQuick
     Qt::WebChannel
     Qt::WebChannelQuick
     Qt::Svg