5/5 Hook up Bridgeless' UIManager.hasViewManagerConfig with Fabric's native component registry

Summary:
Allow JS to detect if a native UI component is registered to `RCTComponentViewFactory.mm` with JS `UIManager.hasViewManagerConfig(componentName)`.

Fyi, `UIManager.js` is
- `DummyUIManager.js` for Bridgeless,
- `LazyUIManager.js` for Fabric with SVC enabled,
- and `PaperUIManager.js`. for Fabric with SVC disabled.

# How it works in Bridgeless
- `DummyUIManager.hasViewManagerConfig()` checks whether a component exists in the binary. It is hooked up to `unstable_hasComponent()`,
- which is hooked up to the native function `RCTInstallNativeComponentRegistryBinding()`,
- which returns whether a component has been registered to `RCTComponentViewFactory`
- (and also registers the native component if hasn't been registered yet).

Changelog: [Bridgeless][JS] Hook up Venice's UIManager.hasViewManagerConfig with Fabric's native component registry

Reviewed By: RSNara

Differential Revision: D33511659

fbshipit-source-id: 14519378ce3e4247516fcf5a6f83a82aa87c7919

Libraries/ReactNative/DummyUIManager.js

@@ -11,11 +11,13 @@
 'use strict';
 
 import type {RootTag} from 'react-native/Libraries/Types/RootTagTypes';
+import {unstable_hasComponent} from 'react-native/Libraries/NativeComponent/NativeComponentRegistryUnstable';
 
 module.exports = {
   getViewManagerConfig: (viewManagerName: string): mixed => {
     console.warn(
-      'Attempting to get config for view manager: ' + viewManagerName,
+      'getViewManagerConfig is unavailable in Bridgeless, use hasViewManagerConfig instead. viewManagerName: ' +
+        viewManagerName,
     );
     if (viewManagerName === 'RCTVirtualText') {
       return {};
@@ -23,10 +25,15 @@ module.exports = {
     return null;
   },
   hasViewManagerConfig: (viewManagerName: string): boolean => {
-    return (
-      viewManagerName === 'RCTVirtualText' ||
-      viewManagerName === 'RCTShimmeringView'
-    );
+    const staticViewConfigsEnabled = global.__fbStaticViewConfig === true;
+    if (staticViewConfigsEnabled) {
+      return unstable_hasComponent(viewManagerName);
+    } else {
+      return (
+        viewManagerName === 'RCTVirtualText' ||
+        viewManagerName === 'RCTShimmeringView'
+      );
+    }
   },
   getConstants: (): {...} => ({}),
   getConstantsForViewManager: (viewManagerName: string) => {},