Pinned posts (#5055)

* add to dropdown menu

* use normal profile mutation hook

* add pin as reason

* request pins

* shadow update

* rm logs

* get prev pinned from getProfile

* fix toasts

* invalidate after appview ready

* don't mutate params

* rm log

* use checkCommited rather than manual whenAppViewReady

* move to mutation

* even more optimistic optimistic update

* allow pins in `posts_and_author_threads`

* update @atproto/api

* add reasonPin type

* fix strange type error in unrelated query

* another missing type

src/state/queries/profile.ts

@@ -159,6 +159,9 @@ export function useProfileUpdateMutation() {
         } else {
           existing.displayName = updates.displayName
           existing.description = updates.description
+          if ('pinnedPost' in updates) {
+            existing.pinnedPost = updates.pinnedPost
+          }
         }
         if (newUserAvatarPromise) {
           const res = await newUserAvatarPromise