collab: Only subscribe to Zed Free if there isn't an existing active subscription (#30967)
This PR adds a sanity check to ensure that we only subscribe the user to
Zed Free if they don't already have an active subscription.
Release Notes:
- N/A
05f8001ee9Marshall Bowers committed on 5/19/2025, 6:26:54 PM· committed by GitHubparentb93c674