Add region to configuration

[jpike88]

IntercomRegion

https://developers.intercom.com/installing-intercom/android/data-hosting-region-configuration

^ these capabilities are not built into this plugin as far as I can see

[theo-staizen]

You don't need a feature in the plugin. You can configure this as described in the docs:

• https://developers.intercom.com/installing-intercom/ios/data-hosting-region-configuration
• https://developers.intercom.com/installing-intercom/android/data-hosting-region-configuration