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-gitProvider.mdx

@@ -0,0 +1,21 @@
+---
+title: Git Provider
+full: true
+_openapi:
+  toc:
+    - depth: 2
+      title: Git Provider get All
+      url: '#git-provider-get-all'
+    - depth: 2
+      title: Git Provider remove
+      url: '#git-provider-remove'
+  structuredData:
+    headings:
+      - content: Git Provider get All
+        id: git-provider-get-all
+      - content: Git Provider remove
+        id: git-provider-remove
+    contents: []
+---
+
+<APIPage document={"./public/openapi.json"} operations={[{"method":"get","path":"/gitProvider.getAll"},{"method":"post","path":"/gitProvider.remove"}]} hasHead={true} />