feat(editor): edgeless page block toolbar (#9707)

Close [BS-2315](https://linear.app/affine-design/issue/BS-2315/page-block-header)

### What Changes
- Add header toolbar to page block (the first note in canvas)
- Add e2e tests
- Add some edgeless e2e test utils.  **The package `@blocksuite/affine` was added to `"@affine-test/kit"`**

yarn.lock

@@ -82,6 +82,7 @@ __metadata:
   resolution: "@affine-test/kit@workspace:tests/kit"
   dependencies:
     "@affine-tools/utils": "workspace:*"
+    "@blocksuite/affine": "workspace:*"
     "@node-rs/argon2": "npm:^2.0.2"
     "@playwright/test": "npm:=1.49.1"
     express: "npm:^4.21.2"