Update documentation and configuration for MkDocs

- Added new pages to the documentation navigation, including Docker, Upgrade, and Guides sections.
- Updated mkdocs.yml to include the mkdocs-exclude plugin for better content management.
- Modified pyproject.toml to include mkdocs-exclude as a dependency.
- Adjusted GitHub Actions workflow to install the new dependency.
- Removed outdated link from the index.md documentation page.

.github/workflows/docs.yml

@@ -22,7 +22,7 @@ jobs:
           python-version: "3.x"
 
       - name: Install MkDocs and Material
-        run: pip install mkdocs-material
+        run: pip install "mkdocs-material>=9.0.0,<10" "mkdocs-exclude>=1.0.0"
 
       - name: Deploy to GitHub Pages
         run: mkdocs gh-deploy --force