[qt] Fix title bar for windows being forced to light theme (#236)

Fixed the title bar being forced to light theme and properly handle it the qt6.5 way
See: https://stackoverflow.com/a/78854851

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/236
Reviewed-by: crueter <crueter@eden-emu.dev>
Co-authored-by: Maufeat <sahyno1996@gmail.com>
Co-committed-by: Maufeat <sahyno1996@gmail.com>

CMakeModules/CopyYuzuQt6Deps.cmake

@@ -63,6 +63,4 @@ function(copy_yuzu_Qt6_deps target_dir)
     else()
         # Update for non-MSVC platforms if needed
     endif()
-    # Fixes dark mode being forced automatically even when light theme is set in app settings.
-	file(WRITE "${CMAKE_BINARY_DIR}/bin/${CMAKE_BUILD_TYPE}/qt.conf" "[Platforms]\nWindowsArguments = darkmode=0")
 endfunction(copy_yuzu_Qt6_deps)