fix: store emote id as string in sub events over pubsub

[iProdigy]

Prerequisites for Code Changes

• This pull request follows the code style of the project
• I have tested this feature

Issues Fixed

com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type `int` from String "emotesv2_01ad668a984f449ba9d950381638056a": not a valid `int` value

Changes Proposed

• Make the emote id in pubsub commerce messages a string (in unbreaking fashion)
• Unrelated: add more fields for unofficial sub gift events over pubsub

Additional Information

Thanks to Doc#4444 for reporting