Enhance site layout rendering and integrate shared components

- Added read-only access to shared frontend components in `docker-compose.app.yml`.
- Updated TypeScript configuration in `tsconfig.app.json` and `tsconfig.json` to support path mapping for shared components.
- Modified CSS imports in `index.css` to accommodate shared styles.
- Refactored layout rendering logic in `layoutRenderer.tsx` to utilize shared layout components for various site layouts.
- Improved template rendering in `templateEngine.tsx` by integrating shared block components for better consistency and maintainability.

sites/tsconfig.json

@@ -7,7 +7,7 @@
   "compilerOptions": {
     "baseUrl": ".",
     "paths": {
-      "@shared/*": ["../frontend/src/components/shared/*"]
+      "@shared/*": ["../frontend/src/components/shared/*", "/frontend/src/components/shared/*"]
     }
   }
 }