refactor(editor): remove legacy blocksuite doc (#9521)

packages/frontend/core/src/components/blocksuite/block-suite-editor/no-page-error.ts

@@ -1,5 +1,5 @@
 import type { Blocks } from '@blocksuite/affine/store';
-import type { Map as YMap } from 'yjs';
+import type { Doc as YDoc, Map as YMap } from 'yjs';
 
 /**
  * TODO(@eyhn): Define error to unexpected state together in the future.
@@ -9,9 +9,9 @@ export class NoPageRootError extends Error {
     super('Page root not found when render editor!');
 
     // Log info to let sentry collect more message
-    const hasExpectSpace = Array.from(page.rootDoc.spaces.values()).some(
-      doc => page.spaceDoc.guid === doc.guid
-    );
+    const hasExpectSpace = Array.from(
+      page.rootDoc.getMap<YDoc>('spaces').values()
+    ).some(doc => page.spaceDoc.guid === doc.guid);
     const blocks = page.spaceDoc.getMap('blocks') as YMap<YMap<any>>;
     const havePageBlock = Array.from(blocks.values()).some(
       block => block.get('sys:flavour') === 'affine:page'