feat(editor): viewport overlay widget extension (#12035)

Closes: BS-3360

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

- **New Features**
  - Introduced a new viewport overlay widget, making it available as part of the workspace and enabling its integration into supported pages.

- **Refactor**
  - Updated internal imports and exports to utilize the new viewport overlay widget package.
  - Streamlined widget registration and extension mechanisms for improved modularity.

- **Chores**
  - Added configuration and project references to support the new viewport overlay widget package in the build system.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

blocksuite/affine/widgets/toolbar/package.json

@@ -39,12 +39,5 @@
     "!src/__tests__",
     "!dist/__tests__"
   ],
-  "version": "0.21.0",
-  "devDependencies": {
-    "@types/lodash.groupby": "^4",
-    "@types/lodash.mergewith": "^4",
-    "@types/lodash.orderby": "^4",
-    "@types/lodash.partition": "^4",
-    "@types/lodash.topairs": "^4"
-  }
+  "version": "0.21.0"
 }