feat(editor): block comment extension (#12980)

#### PR Dependency Tree


* **PR #12980** 👈

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blocksuite/affine/blocks/surface-ref/src/configs/toolbar.ts

@@ -5,6 +5,7 @@ import {
 } from '@blocksuite/affine-shared/commands';
 import {
   ActionPlacement,
+  blockCommentToolbarButton,
   type ToolbarModuleConfig,
 } from '@blocksuite/affine-shared/services';
 import { CaptionIcon, CopyIcon, DeleteIcon } from '@blocksuite/icons/lit';
@@ -61,6 +62,10 @@ export const surfaceRefToolbarModuleConfig: ToolbarModuleConfig = {
         surfaceRefBlock.captionElement.show();
       },
     },
+    {
+      id: 'e.comment',
+      ...blockCommentToolbarButton,
+    },
     {
       id: 'a.clipboard',
       placement: ActionPlacement.More,