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"`**

packages/frontend/track/src/events.ts

@@ -314,6 +314,7 @@ const PageEvents = {
       pageRef: ['navigate'],
       toolbar: ['copyBlockToLink'],
       aiActions: ['requestSignIn'],
+      pageBlockHeader: ['openDocInfo'],
     },
     inlineDocInfo: {
       $: ['toggle'],