feat(editor): show doc title in page block (#9975)

Close [BS-2392](https://linear.app/affine-design/issue/BS-2392/page-block-需要显示文章title)

### What Changes
- Add `<doc-title>` to edgeless page block (a.k.a the first page visible note block)
- Refactors:
  - Move `<doc-title>` to `@blocksuite/affine-component`, but you can aslo import it from `@blocksuite/preset`
  - Extract `<edgeless-note-mask>` and `<edgeless-note-background>` from `<affine-edgeless-note>` to a seperate file
  - Rewrite styles of `<affine-edgeless-note>` with `@vanilla-extract/css`

https://github.com/user-attachments/assets/a0c03239-803e-4bfa-b30e-33b919213b12

blocksuite/affine/components/package.json

@@ -61,7 +61,8 @@
     "./toggle-switch": "./src/toggle-switch/index.ts",
     "./notification": "./src/notification/index.ts",
     "./block-zero-width": "./src/block-zero-width/index.ts",
-    "./block-selection": "./src/block-selection/index.ts"
+    "./block-selection": "./src/block-selection/index.ts",
+    "./doc-title": "./src/doc-title/index.ts"
   },
   "files": [
     "src",