chore: merge blocksuite source code (#9213)

blocksuite/affine/block-surface/src/surface-block-void.ts

@@ -0,0 +1,20 @@
+import { BlockComponent } from '@blocksuite/block-std';
+import { nothing } from 'lit';
+
+import type { SurfaceBlockModel } from './surface-model.js';
+import type { SurfaceBlockService } from './surface-service.js';
+
+export class SurfaceBlockVoidComponent extends BlockComponent<
+  SurfaceBlockModel,
+  SurfaceBlockService
+> {
+  override render() {
+    return nothing;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    'affine-surface-void': SurfaceBlockVoidComponent;
+  }
+}