fix: Ensure compatibility with new React Native version

Author: SHIVA-juspay

android/src/main/java/in/juspay/hypersdkreact/HyperSdkReactModule.java

@@ -324,9 +324,15 @@ public View createReactSurfaceView(String viewName) {
                     private View createMerchantView(String viewName) {
 
                         if (!useNewApprochForMerchantView) {
+                            if (reactInstanceManager == null) {
+                                reactInstanceManager = this.app.getReactNativeHost().getReactInstanceManager();
+                            }
                             if (newArchEnabled) {
                                 return createReactSurfaceView(viewName);
                             }
+                            if (reactInstanceManager == null) {
+                                return null;
+                            }
                             ReactRootView reactRootView = new ReactRootView(activity);
                             reactRootView.startReactApplication(reactInstanceManager, viewName);
                             return reactRootView;
@@ -362,7 +368,7 @@ private View createMerchantView(String viewName) {
                     @Override
                     public View getMerchantView(ViewGroup viewGroup, MerchantViewType merchantViewType) {
                         Activity activity = (Activity) getCurrentActivity();
-                        if (!useNewApprochForMerchantView && reactInstanceManager == null || activity == null) {
+                        if (activity == null) {
                             return super.getMerchantView(viewGroup, merchantViewType);
                         } else {
                             View merchantView = null;
@@ -426,12 +432,6 @@ private void createHyperService(@Nullable String tenantId, @Nullable String clie
         Application app = activity.getApplication();
         if (app instanceof ReactApplication) {
             this.app = ((ReactApplication) app);
-            if (!useNewApprochForMerchantView) {
-                reactInstanceManager = ((ReactApplication) app).getReactNativeHost().getReactInstanceManager();
-            }
-            else {
-                reactInstanceManager = null;
-            }
         }
         if (tenantId != null && clientId != null) {
             hyperServices = new HyperServices(activity, tenantId, clientId);