docs: modernize

sandwich-site/docusaurus.config.ts

@@ -1,7 +1,11 @@
-module.exports = {
+import {themes as prismThemes} from 'prism-react-renderer';
+import type {Config} from '@docusaurus/types';
+import type * as Preset from '@docusaurus/preset-classic';
+
+const config: Config = {
   title: 'Sandwich',
   tagline: 'Yet another test framework for Haskell',
-  url: 'https://github.com/codedownio/sandwich',
+  url: 'https://codedownio.github.io',
   baseUrl: '/sandwich/',
   onBrokenLinks: 'throw',
   onBrokenMarkdownLinks: 'warn',
@@ -78,7 +82,7 @@ module.exports = {
       ],
       copyright: `Copyright © ${new Date().getFullYear()} Tom McLaughlin. Built with Docusaurus.`,
     },
-  },
+  } satisfies Preset.ThemeConfig,
   presets: [
     [
       '@docusaurus/preset-classic',
@@ -96,7 +100,9 @@ module.exports = {
         theme: {
           customCss: require.resolve('./src/css/custom.css'),
         },
-      },
+      } satisfies Preset.Options,
     ],
   ],
 };
+
+export default config;

sandwich-site/package.json

@@ -9,18 +9,22 @@
     "swizzle": "docusaurus swizzle",
     "deploy": "docusaurus deploy",
     "serve": "docusaurus serve",
-    "clear": "docusaurus clear"
+    "clear": "docusaurus clear",
+    "upgrade-interactive": "npm-check --update"
   },
   "dependencies": {
-    "@docusaurus/core": "2.0.0-alpha.72",
-    "@docusaurus/preset-classic": "2.0.0-alpha.72",
-    "@mdx-js/react": "^1.6.21",
-    "clsx": "^1.1.1",
-    "react": "^16.8.4",
-    "react-dom": "^16.8.4",
+    "@docusaurus/core": "^3.3.2",
+    "@docusaurus/preset-classic": "^3.3.2",
+    "@mdx-js/react": "^2",
+    "clsx": "^2",
+    "react": "^18",
+    "react-dom": "^18",
     "react-responsive-carousel": "^3.2.13",
     "react-typist": "^2.0.5"
   },
+  "devDependencies": {
+    "npm-check": "^6.0.1"
+  },
   "browserslist": {
     "production": [
       ">0.5%",