feat: add blog list layout

chore: add toc to mobile dropdown menu single items

chore: refactor sidebar

chore: add single layout for blog

chore: add vscode settings

chore: add blog section

chore: add devcontainer.json

chore: exclude icon from mobile nav

chore: support multiple theme switches

- simplify theme switch implementation using data attributes
- hide theme switch when sidebar is disabled

chore: add theme switch to footer

- enable when sidebar is disabled

chore: add format-date partial

layouts/docs/list.html

@@ -1,6 +1,6 @@
 {{ define "main" }}
   <div class="mx-auto flex max-w-[90rem]">
-    {{ partial "sidebar.html" . }}
+    {{ partial "sidebar.html" (dict "context" .) }}
     {{ partial "toc.html" . }}
     <article class="w-full break-words flex min-h-[calc(100vh-4rem)] min-w-0 justify-center pb-8 pr-[calc(env(safe-area-inset-right)-1.5rem)]">
       <main class="w-full min-w-0 max-w-6xl px-6 pt-4 md:px-12">