Refactor <FavouritedStatuses> and <BookmarkedStatuses> into TypeScript (#34356)

app/javascript/mastodon/selectors/statuses.ts

@@ -0,0 +1,15 @@
+import { createSelector } from '@reduxjs/toolkit';
+import type { OrderedSet as ImmutableOrderedSet } from 'immutable';
+
+import type { RootState } from 'mastodon/store';
+
+export const getStatusList = createSelector(
+  [
+    (
+      state: RootState,
+      type: 'favourites' | 'bookmarks' | 'pins' | 'trending',
+    ) =>
+      state.status_lists.getIn([type, 'items']) as ImmutableOrderedSet<string>,
+  ],
+  (items) => items.toList(),
+);