chore: register and delete device token in react native & ios

[ami-aman]

Linear ticket:
https://linear.app/customerio/issue/MBL-505/register-and-delete-already-registered-device-token-in-react-native
https://linear.app/customerio/issue/MBL-506/register-and-delete-token-feature-support-in-ios-native-module

This PR introduces two new methods, registerDeviceToken and deleteDeviceToken, to both the React Native and iOS native modules. These methods have been implemented and tested to ensure proper functionality.

Changes:

React Native Module:

• Added registerDeviceToken method.
• Added deleteDeviceToken method.
  iOS Native Module:
• Implemented registerDeviceToken method.
• Implemented deleteDeviceToken method.

Purpose:

The purpose of these changes is to provide a more comprehensive device token management solution within the React Native and iOS native modules, enabling better handling of device tokens.

Testing:

Dev testing has been done on the following users:

• Register device token : User
• Delete device token : User

Notes:

• Since there is no test button in our current sample apps, testing was conducted by manually updating the methods on certain existing buttons. This approach may be a limitation for QA testing.

[github-actions]

Sample app builds 📱

Below you will find the list of the latest versions of the sample apps. It's recommended to always download the latest builds of the sample apps to accurately test the pull request.

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• APN: Build failed. See CI job logs to determine the issue and try re-building.
• FCM: Build failed. See CI job logs to determine the issue and try re-building.