Enable ConcurrentRoot in RN VR apps

Summary:
This diff is a prototype to enable ConcurrentRoot in RN VR apps

changelog: [internal] internal

Reviewed By: sammy-SC

Differential Revision: D33200238

fbshipit-source-id: 45f700808cdc3a970bcddef858944e764a7260bd

Libraries/ReactNative/AppRegistry.js

@@ -113,6 +113,9 @@ const AppRegistry = {
     runnables[appKey] = {
       componentProvider,
       run: (appParameters, displayMode) => {
+        const concurrentRootEnabled =
+          appParameters.initialProps?.concurrentRoot ||
+          appParameters.concurrentRoot;
         renderApplication(
           componentProviderInstrumentationHook(
             componentProvider,
@@ -127,7 +130,7 @@ const AppRegistry = {
           appKey === 'LogBox',
           appKey,
           coerceDisplayMode(displayMode),
-          appParameters.concurrentRoot,
+          concurrentRootEnabled,
         );
       },
     };