message: Checked for current activity
  Don't know if it's needed but respects what the old code
diff: @@ -17,7 +17,7 @@ public class LinkActivity extends Activity {
  Intent intent = getIntent();
  Uri uri = intent.getData();
  ReactContext reactContext = ((ReactApplication) getApplication()).getReactNativeHost().getReactInstanceManager().getCurrentReactContext();
  - if (reactContext == null) {
  + if (reactContext == null || reactContext.getCurrentActivity() == null) {
  Intent mainIntent = getApplicationContext().getPackageManager().getLaunchIntentForPackage(getApplicationContext().getPackageName());
  if (mainIntent != null) {
  mainIntent.setData(uri);
  