When we create a user, we pass certain attributes about the user (say username).

Now, when we update the user, the intention is to add more attributes (or update existing ones) of the user. However, it appears that when we update the user, we need to pass all the attributes, and not just the ones that are new / need updates. That is, we need to pass the username again, even though it has not ch

Due to the type system (mostly), these two feed type implementations have duplicated code. It should be reduced to one since notification feed wraps aggregated feed mainly.

Then also drop the ignore in lint configuration: https://github.com/GetStream/stream-go2/blob/master/.golangci.yml#L54