QtAndroid::runOnUiThread queuing calls when background_running=true

QtAndroid::runOnUiThread will queue events if it is called when the application is not in the active state. While this I believe this is expected as the default behavior it does not honor the "android.app.background_running" flag which can be set in the manifest.

QtNative is blocking this in the runPendingCppRnnablesOnAndroidThread. I believe this should also check the above flag.