refactor(editor): playground doc collection typing migration (#9593)

blocksuite/playground/apps/starter/data/affine-snapshot.ts

@@ -1,7 +1,7 @@
 import { ZipTransformer } from '@blocksuite/blocks';
-import { type DocCollection, Text } from '@blocksuite/store';
+import { Text, type Workspace } from '@blocksuite/store';
 
-export async function affineSnapshot(collection: DocCollection, id: string) {
+export async function affineSnapshot(collection: Workspace, id: string) {
   const doc = collection.createDoc({ id });
   doc.load();
   // Add root block and surface block at root level