Various search fixes (#2145)

* Add posts-search query to shadow cache search

* Update user search to use correct endpoint

* Fix: include cursor in post search

src/state/cache/post-shadow.ts

@@ -6,6 +6,7 @@ import {Shadow, castAsShadow} from './types'
 import {findAllPostsInQueryData as findAllPostsInNotifsQueryData} from '../queries/notifications/feed'
 import {findAllPostsInQueryData as findAllPostsInFeedQueryData} from '../queries/post-feed'
 import {findAllPostsInQueryData as findAllPostsInThreadQueryData} from '../queries/post-thread'
+import {findAllPostsInQueryData as findAllPostsInSearchQueryData} from '../queries/search-posts'
 import {queryClient} from 'lib/react-query'
 export type {Shadow} from './types'
 
@@ -98,4 +99,7 @@ function* findPostsInCache(
       yield node.post
     }
   }
+  for (let post of findAllPostsInSearchQueryData(queryClient, uri)) {
+    yield post
+  }
 }