feat(editor): fragment extensions (#12066)

Closes: BS-3382
Closes: BS-3381
Closes: BS-3380

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

- **New Features**
	- Introduced new view extensions for document title, frame panel, and outline fragments, enhancing modularity and extensibility.
- **Refactor**
	- Updated export structure for fragments to support directory-based modules and added dedicated view module exports.
	- Replaced a centralized view extension with individual fragment-based view extensions for improved clarity.
- **Chores**
	- Updated dependencies and TypeScript project references to ensure compatibility and maintainability.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

blocksuite/affine/fragments/outline/tsconfig.json

@@ -9,6 +9,7 @@
   "references": [
     { "path": "../../blocks/note" },
     { "path": "../../components" },
+    { "path": "../../ext-loader" },
     { "path": "../doc-title" },
     { "path": "../../model" },
     { "path": "../../rich-text" },