Show collection preview cards and open collections links locally (#38643)

app/javascript/mastodon/models/status.ts

@@ -1,5 +1,6 @@
 import type { RecordOf } from 'immutable';
 
+import type { ApiCollectionJSON } from 'mastodon/api_types/collections';
 import type { ApiPreviewCardJSON } from 'mastodon/api_types/statuses';
 
 export type { StatusVisibility } from 'mastodon/api_types/statuses';
@@ -10,3 +11,5 @@ export type Status = Immutable.Map<string, unknown>;
 export type Card = RecordOf<ApiPreviewCardJSON>;
 
 export type MediaAttachment = Immutable.Map<string, unknown>;
+
+export type CollectionAttachment = RecordOf<ApiCollectionJSON>;