new site style (#1)

* initial phase

* remove pagefind

* phase 2

* restyle blog post pages, markdown rendering, pagination, and social link components.

* use dark-plus theme for markdown code

* update base layout and header components, and update the remote deployment directory

* use expressive code for code styling

* adjust inline code style

* format code

* re-add pagefind

* add sidebar with dev qotd

* add sidebar component with dynamic quote fetching and caching

* add Docker setup with Dockerfile, docker-compose, and dockerignore for the Astro site

* integrate Docker Compose with Traefik proxy and remove the legacy PowerShell deployment script

src/assets/images/linkedin.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="oklch(92.2% 0 0)" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-linkedin"><path d="M16 8a6 6 0 0 1 6 6v7h-4v-7a2 2 0 0 0-2-2 2 2 0 0 0-2 2v7h-4v-7a6 6 0 0 1 6-6z"></path><rect x="2" y="9" width="4" height="12"></rect><circle cx="4" cy="4" r="2"></circle></svg>