feat(blog): add file-based blog with dynamic slugs, MDX content and layout shell

- Introduced blog routing using Next.js App Router
- Implemented dynamic [slug] pages for blog posts
- Added MDX-based content loading via lib/posts
- Integrated shared TopBar layout with navigation
- Established clear content, lib and component separation

apps/public-web/node_modules/next/dist/esm/client/next.js

@@ -0,0 +1,14 @@
+import './webpack';
+import '../lib/require-instrumentation-client';
+import { initialize, hydrate, version, router, emitter } from './';
+window.next = {
+    version,
+    // router is initialized later so it has to be live-binded
+    get router () {
+        return router;
+    },
+    emitter
+};
+initialize({}).then(()=>hydrate()).catch(console.error);
+
+//# sourceMappingURL=next.js.map