Merge "Add flag for themed App Headers in desktop windowing" into main

    description: "Matches the App Header density to that of the app window, instead of SysUI's"

    bug: "332414819"

}

flag {

    name: "enable_themed_app_headers"

    namespace: "lse_desktop_experience"

    description: "Makes the App Header style adapt to the system's and app's light/dark theme"

    bug: "328668781"

}