Rebase

Rebase

Call the new function

Make the type wider

Having threadInfo as a parameter doesn't make sense because in order to call this function we would need to know which part of the update represents the thread ID, which defeats the purpose of encapsulating this logic inside the spec.

In D13059#369998, @inka wrote:

We tested sidebar creation and replies count is incorrect - after creating a sidebar and adding one message to it, the count was 2 instead of 1

Add a function to the read status spec

In D13057#370009, @inka wrote:

One thing we could do here is add a separate update type for unread status. This way the logic from D13059 that needs getUpdatedThreadInfo would not be needed, and so getUpdatedThreadInfo would not be needed. But this might be too much work.

Rename, fix the types

Fix returned validation result

Looks ok, but based on this comment https://linear.app/comm/issue/ENG-9041/update-tabs-style#comment-ce51487d I'm wondering if we can use TabBarItem from react-native-tab-view.

Adding @ashoat as blocking because of the copy.

I don't think we're using ThreadChanges for thick threads currently.

Fix eslint

Rebase