Use Immutable Record for accounts in Redux state (#26559)

app/javascript/mastodon/store/store.ts

@@ -35,6 +35,5 @@ export const store = configureStore({
 
 // Infer the `RootState` and `AppDispatch` types from the store itself
 export type RootState = ReturnType<typeof rootReducer>;
-// Inferred type: {posts: PostsState, comments: CommentsState, users: UsersState}
 export type AppDispatch = typeof store.dispatch;
 export type GetState = typeof store.getState;