Enable Venice

Summary:
Make Venice available in Catalyst Android, to enable set ```ReactFeatureFlags.enableBridgelessArchitecture``` to true in CatalystApplication.java

**Note**: right now not every piece works with Venice enabled, but the main functionalities (Fabric components, playground) mostly work, the rest issues will be gradually fixed.

Changelog:
[Internal][Changed] - Enable Venice in Catalyst Android

Reviewed By: NickGerleman

Differential Revision: D43711737

fbshipit-source-id: 6ecb7e2b09c5b7feaa00b90076a2a894c08affc9

ReactAndroid/src/main/java/com/facebook/react/ReactActivityDelegate.java

@@ -56,7 +56,7 @@ public ReactActivityDelegate(ReactActivity activity, @Nullable String mainCompon
     return null;
   }
 
-  private @NonNull Bundle composeLaunchOptions() {
+  protected @NonNull Bundle composeLaunchOptions() {
     Bundle composedLaunchOptions = getLaunchOptions();
     if (isFabricEnabled()) {
       if (composedLaunchOptions == null) {
@@ -71,6 +71,10 @@ protected ReactRootView createRootView() {
     return new ReactRootView(getContext());
   }
 
+  protected ReactRootView createRootView(Bundle initialProps) {
+    return new ReactRootView(getContext());
+  }
+
   /**
    * Get the {@link ReactNativeHost} used by this app. By default, assumes {@link
    * Activity#getApplication()} is an instance of {@link ReactApplication} and calls {@link
@@ -98,7 +102,7 @@ protected void onCreate(Bundle savedInstanceState) {
             getPlainActivity(), getReactNativeHost(), mainComponentName, launchOptions) {
           @Override
           protected ReactRootView createRootView() {
-            return ReactActivityDelegate.this.createRootView();
+            return ReactActivityDelegate.this.createRootView(launchOptions);
           }
         };
     if (mainComponentName != null) {

ReactAndroid/src/main/java/com/facebook/react/bridge/ReactContext.java

@@ -511,7 +511,10 @@ public boolean isBridgeless() {
    * synchronized(jsContext) { nativeThingNeedingJsContext(jsContext.get()); }
    */
   public JavaScriptContextHolder getJavaScriptContextHolder() {
-    return mCatalystInstance.getJavaScriptContextHolder();
+    if (mCatalystInstance != null) {
+      return mCatalystInstance.getJavaScriptContextHolder();
+    }
+    return null;
   }
 
   public @Nullable JSIModule getJSIModule(JSIModuleType moduleType) {

ReactAndroid/src/main/java/com/facebook/react/modules/blob/BlobCollector.java

@@ -23,7 +23,7 @@ static void install(final ReactContext reactContext, final BlobModule blobModule
           public void run() {
             JavaScriptContextHolder jsContext = reactContext.getJavaScriptContextHolder();
             // When debugging in chrome the JS context is not available.
-            if (jsContext.get() != 0) {
+            if (jsContext != null && jsContext.get() != 0) {
               nativeInstall(blobModule, jsContext.get());
             }
           }

ReactAndroid/src/main/java/com/facebook/react/modules/devloading/DevLoadingModule.java

@@ -58,7 +58,9 @@ public void hide() {
         new Runnable() {
           @Override
           public void run() {
-            mDevLoadingViewManager.hide();
+            if (mDevLoadingViewManager != null) {
+              mDevLoadingViewManager.hide();
+            }
           }
         });
   }