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/tailwind.config.ts

@@ -0,0 +1,16 @@
+import type { Config } from "tailwindcss";
+
+const config: Config = {
+    content: [
+        "./app/**/*.{js,ts,jsx,tsx,mdx}",
+        "./components/**/*.{js,ts,jsx,tsx,mdx}",
+        "./content/**/*.{md,mdx}",
+        "./lib/**/*.{js,ts}"
+    ],
+    theme: {
+        extend: {}
+    },
+    plugins: []
+};
+
+export default config;