feat: add new documentation and assets for the website

- Introduced new MDX components and configuration files for the documentation site.
- Added various images and icons to enhance the visual representation of the documentation.
- Updated package.json and pnpm-lock.yaml to include new dependencies for the documentation.
- Created a .gitignore file for the new docs app to manage ignored files effectively.
- Enhanced README with instructions for restarting the dev server after adding new MDX files.

apps/docs-new/content/docs/api/generated/reference-admin.mdx

@@ -0,0 +1,16 @@
+---
+title: Admin
+full: true
+_openapi:
+  toc:
+    - depth: 2
+      title: Admin setup Monitoring
+      url: '#admin-setup-monitoring'
+  structuredData:
+    headings:
+      - content: Admin setup Monitoring
+        id: admin-setup-monitoring
+    contents: []
+---
+
+<APIPage document={"./public/openapi.json"} operations={[{"method":"post","path":"/admin.setupMonitoring"}]} hasHead={true} />