Further clean up types for the card object (#37023)

app/javascript/mastodon/models/status.ts

@@ -7,8 +7,6 @@ export type { StatusVisibility } from 'mastodon/api_types/statuses';
 // Temporary until we type it correctly
 export type Status = Immutable.Map<string, unknown>;
 
-type CardShape = Required<ApiPreviewCardJSON>;
-
-export type Card = RecordOf<CardShape>;
+export type Card = RecordOf<ApiPreviewCardJSON>;
 
 export type MediaAttachment = Immutable.Map<string, unknown>;