Request to Add Activity ID to Firestore Document Object

[syah284]

Repository: stream/firestore-activity-feeds

Issue Title: Enhance: Include Activity ID in Firestore Document Object

Issue Description:
Currently, the Firestore document object lacks the activity ID when an activity is created within the Stream activity feed using the stream/firestore-activity-feeds Firebase extension. This omission presents challenges when correlating activity data with corresponding Firestore documents, potentially leading to inefficiencies during data retrieval.

Request:
We kindly request an enhancement to the extension's functionality by adding the activity ID to the Firestore document object at the moment an activity is created within the Stream activity feed.

Implementation Proposal:
We propose modifying the extension's logic to ensure that, upon activity creation, the activity ID is included in the Firestore document object. This enhancement would enhance data coherence and simplify retrieval processes for associated activities.

Expected Benefits:

1. Improved Data Correlation: By associating the activity ID with the Firestore document, users can effortlessly match activities with their corresponding Firestore records.
2. Streamlined Data Retrieval: Including the activity ID simplifies queries, promoting efficient retrieval of activity-related data from Firestore.

We believe this enhancement will significantly improve the usability and effectiveness of the stream/firestore-activity-feeds extension. Thank you for considering our request.

Additional Information:

• Firebase Extension: stream/firestore-activity-feeds
• Stream API: Stream - The API for Building Feeds
• Collaboration: Your feedback and guidance on implementing this enhancement are highly valued. We are willing to collaborate and contribute to its implementation.

Thank you for your attention to this matter.