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/i18n/src/resources/en.json

@@ -1332,6 +1332,8 @@
   "com.affine.settings.workspace.experimental-features.enable-mobile-edgeless-editing.description": "Once enabled, users can edit edgeless canvas.",
   "com.affine.settings.workspace.experimental-features.enable-pdf-embed-preview.name": "PDF embed preview",
   "com.affine.settings.workspace.experimental-features.enable-pdf-embed-preview.description": "Once enabled, you can preview PDF in embed view.",
+  "com.affine.settings.workspace.experimental-features.enable-page-block-header.name": "Page Block Header",
+  "com.affine.settings.workspace.experimental-features.enable-page-block-header.description": "Once enabled, the header of page block will be displayed.",
   "com.affine.settings.workspace.not-owner": "Only an owner can edit the workspace avatar and name. Changes will be shown for everyone.",
   "com.affine.settings.workspace.preferences": "Preference",
   "com.affine.settings.workspace.billing": "Billing",
@@ -1590,6 +1592,8 @@
   "com.affine.editor.at-menu.date-picker": "Select a specific date",
   "com.affine.editor.bi-directional-link-panel.show": "Show",
   "com.affine.editor.bi-directional-link-panel.hide": "Hide",
+  "com.affine.editor.edgeless-note-header.fold-page-block": "Fold page block",
+  "com.affine.editor.edgeless-note-header.view-in-page": "View in page",
   "com.affine.upgrade-to-team-page.title": "Empower Your Team with Seamless Collaboration",
   "com.affine.upgrade-to-team-page.workspace-selector.placeholder": "Select an existing workspace or create a new one",
   "com.affine.upgrade-to-team-page.workspace-selector.create-workspace": "Create Workspace",