Infinite loop if UserStore can't find a user

[milanpoliak]

Describe the bug
If the UserStore does not contain a set of user IDs, it attempts to resolve them

Unless the resolver does not throw an error when it can't resolve a particular ID, update is emitted

The emitted update causes the useUsers hook to load the users again

It is probably a rare occasion, but nevertheless, it might happen and potentially freeze the app.

To Reproduce

• visit the below Stackblitz
• open the browser console
• add a comment as John Doe
• click onto the commented text to open the thread
• see resolving being logged repeatedly

https://stackblitz.com/github/milanpoliak/BlockNote/tree/load-users-loop/examples/07-collaboration/04-comments?file=App.tsx