refactor: use markdown layouts

astro.config.mjs

@@ -4,7 +4,6 @@ import sitemap from "@astrojs/sitemap";
 import Icons from 'unplugin-icons/vite'
 import mdx from '@astrojs/mdx';
 import glsl from 'vite-plugin-glsl';
-import remarkToc from 'remark-toc'
 
 import svelte from "@astrojs/svelte";
 import UnoCSS from 'unocss/astro'
@@ -15,6 +14,15 @@ const locales = {
   de: "de",
 };
 
+const DEFAULT_LAYOUT = '@layouts/Post.astro';
+
+function setDefaultLayout() {
+  return function (_, file) {
+    const { frontmatter } = file.data.astro;
+    if (!frontmatter.layout) frontmatter.layout = DEFAULT_LAYOUT;
+  };
+}
+
 // https://astro.build/config
 export default defineConfig({
   site: "https://max-richter.dev",
@@ -31,12 +39,11 @@ export default defineConfig({
       }),
     ],
   },
+  markdown: {
+    remarkPlugins: [setDefaultLayout]
+  },
   integrations: [
-    mdx({
-      remarkPlugins: [
-        remarkToc
-      ]
-    }),
+    mdx(),
     svelte(),
     UnoCSS({
       injectReset: true