properly shutdown if ENABLE_BROWSER_QT_LOOP is enabled

* slobs doesnt enable this flag however for consistency sake we will
properly shutdown when Qt is enabled for browser src

Author: sandboxcoder

obs-browser-plugin.cpp

@@ -955,9 +955,9 @@ void obs_module_post_load(void)
 
 void obs_module_unload(void)
 {
-#ifdef USE_UI_LOOP
+#if defined(USE_UI_LOOP) || defined(ENABLE_BROWSER_QT_LOOP)
 	BrowserShutdown();
-#elif __APPLE__
+#elif defined(__APPLE__)
 	ExecuteSyncTask([]() {
 		StopCefMessageLoopTimer();
 		BrowserShutdown();