Is your feature request related to a problem? Please describe.
Braze currently provides separate appKey (App Identifiers) values for Android and iOS apps, as they are treated as distinct applications within their system. However, the current integration only supports a single appKey per environment, which leads to limitations when sending data or triggering campaigns specific to a platform.
Describe the solution you'd like
Add support for specifying separate appKey values for Android and iOS in the Braze React Native integration. The integration should automatically select the correct appKey based on the user's platform when sending events or performing other Braze-related operations.