Initial commit: Astro 6 static blog site

- German (default) and English i18n support
- Categories and tags
- Blog posts with hero images
- Dark/light theme switcher
- View Transitions removed to fix reload ghost images
- Webmentions integration
- RSS feeds per locale

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/content/posts/de/using-mdx.mdx

@@ -0,0 +1,35 @@
+---
+title: 'Using MDX'
+description: 'Lorem ipsum dolor sit amet'
+pubDate: 'Jun 01 2024'
+heroImage: '../../../assets/blog-placeholder-5.jpg'
+category: de/technik
+tags:
+  - markdown
+  - astro
+---
+
+This theme comes with the [@astrojs/mdx](https://docs.astro.build/en/guides/integrations-guide/mdx/) integration installed and configured in your `astro.config.mjs` config file. If you prefer not to use MDX, you can disable support by removing the integration from your config file.
+
+## Why MDX?
+
+MDX is a special flavor of Markdown that supports embedded JavaScript & JSX syntax. This unlocks the ability to [mix JavaScript and UI Components into your Markdown content](https://docs.astro.build/en/guides/integrations-guide/mdx/#mdx-in-astro) for things like interactive charts or alerts.
+
+If you have existing content authored in MDX, this integration will hopefully make migrating to Astro a breeze.
+
+## Example
+
+Here is how you import and use a UI component inside of MDX.  
+When you open this page in the browser, you should see the clickable button below.
+
+import HeaderLink from '~/components/HeaderLink.astro';
+
+<HeaderLink href="#" onclick="alert('clicked!')">
+	Embedded component in MDX
+</HeaderLink>
+
+## More Links
+
+- [MDX Syntax Documentation](https://mdxjs.com/docs/what-is-mdx)
+- [Astro Usage Documentation](https://docs.astro.build/en/basics/astro-pages/#markdownmdx-pages)
+- **Note:** [Client Directives](https://docs.astro.build/en/reference/directives-reference/#client-directives) are still required to create interactive components. Otherwise, all components in your MDX will render as static HTML (no JavaScript) by default.