Following projects doesn't increment client side follow count

[macbrayne]

Environment

Website

Describe the bug

Following / Unfollowing projects doesn't increase / decrease the client side follow count. This is unexpected behaviour because users generally expect feedback.

Steps To Reproduce

1. Login to Modrinth
2. Open a modrinth project site, e.g. https://staging.modrinth.com/mod/darklilith or https://modrinth.com/mod/lazydfu
3. Click "Follow" / "Unfollow"
4. Observe the follow count not incrementing / decrementing
5. Reload and observe the updated follow count

Expected behavior

The follow count should update (+1) immediately if the action was successful – otherwise users might think it failed to register.

Additional context

No response