[notifications][docs] rename and export getExpoPushTokenAsync parameter type

[Simek]

Why

Refs: https://exponent-internal.slack.com/archives/C1QMWQ1P0/p1675723296628999

How

After switching Notifications package to leverage the autogenerated docs one of the methods parameters types was missing. This PR renames and exports the problematic param type to make the documentation complete.

Test Plan

The updated docs data file was tested locally, by running docs app.

Preview

Checklist

• Documentation is up to date to reflect these changes (eg: https://docs.expo.dev and README.md).
• Conforms with the Documentation Writing Style Guide
• This diff will work correctly for expo prebuild & EAS Build (eg: updated a module plugin).

[kbrandwijk]

I guess the fact that this type wasn't exported before makes this not a breaking change.

[Simek]

Generally, changing types is not considered by us as a breaking change. In this case, since the type was not exported earlier, it is not possible that this change would affect users. It would be possible to break some users code if the type was exported locally, and not on the root level (some people might use the build file import directly to obtain the type information), but this fortunately was not the case.

[amandeepmittal]

Updated the docs as per the latest conversation in the Slack thread with Will and Simek. Let me know your feedback on this.

cc: @Simek @kbrandwijk

[brentvatne]

i'm about to cut sdk 48 docs, can you cherry-pick this to sdk-48 and ensure it's in sdk 48 docs when this ready?