fix(editor): revert bg color of attachments when loading or error states (#12061)

Closes: [BS-3379](https://linear.app/affine-design/issue/BS-3379/恢复在-loading-或错误时-attachments-的背景色)

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit

- **Style**
  - Updated the background color of attachment cards in loading and error states for a more consistent appearance.
- **Bug Fixes**
  - Improved the handling and display of loading and uploading states for attachment cards to better reflect their current status.
- **Chores**
  - Added new workspace dependencies and project references to enhance synchronization capabilities across related modules.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

blocksuite/affine/blocks/attachment/tsconfig.json

@@ -16,6 +16,7 @@
     { "path": "../../widgets/slash-menu" },
     { "path": "../../../framework/global" },
     { "path": "../../../framework/std" },
-    { "path": "../../../framework/store" }
+    { "path": "../../../framework/store" },
+    { "path": "../../../framework/sync" }
   ]
 }