Refactor feeds to use react-query (#1862)

* Update to react-query v5

* Introduce post-feed react query

* Add feed refresh behaviors

* Only fetch feeds of visible pages

* Implement polling for latest on feeds

* Add moderation filtering to slices

* Handle block errors

* Update feed error messages

* Remove old models

* Replace simple-feed option with disable-tuner option

* Add missing useMemo

* Implement the mergefeed and fixes to polling

* Correctly handle failed load more state

* Improve error and empty state behaviors

* Clearer naming

src/lib/api/feed/author.ts

@@ -1,38 +1,37 @@
 import {
   AppBskyFeedDefs,
   AppBskyFeedGetAuthorFeed as GetAuthorFeed,
+  BskyAgent,
 } from '@atproto/api'
-import {RootStoreModel} from 'state/index'
 import {FeedAPI, FeedAPIResponse} from './types'
 
 export class AuthorFeedAPI implements FeedAPI {
-  cursor: string | undefined
-
   constructor(
-    public rootStore: RootStoreModel,
+    public agent: BskyAgent,
     public params: GetAuthorFeed.QueryParams,
   ) {}
 
-  reset() {
-    this.cursor = undefined
-  }
-
   async peekLatest(): Promise<AppBskyFeedDefs.FeedViewPost> {
-    const res = await this.rootStore.agent.getAuthorFeed({
+    const res = await this.agent.getAuthorFeed({
       ...this.params,
       limit: 1,
     })
     return res.data.feed[0]
   }
 
-  async fetchNext({limit}: {limit: number}): Promise<FeedAPIResponse> {
-    const res = await this.rootStore.agent.getAuthorFeed({
+  async fetch({
+    cursor,
+    limit,
+  }: {
+    cursor: string | undefined
+    limit: number
+  }): Promise<FeedAPIResponse> {
+    const res = await this.agent.getAuthorFeed({
       ...this.params,
-      cursor: this.cursor,
+      cursor,
       limit,
     })
     if (res.success) {
-      this.cursor = res.data.cursor
       return {
         cursor: res.data.cursor,
         feed: this._filter(res.data.feed),