feat: complete MDX migration, stabilize routing and lead capture

Former-commit-id: ab5cc38c97e5f73d6e821465b90d199fb6e6edc9

.next/standalone/node_modules/.pnpm/critters@0.0.25/node_modules/critters/package.json

@@ -1,61 +0,0 @@
-{
-  "name": "critters",
-  "version": "0.0.25",
-  "description": "Inline critical CSS and lazy-load the rest.",
-  "main": "dist/critters.js",
-  "module": "dist/critters.mjs",
-  "source": "src/index.js",
-  "exports": {
-    "import": "./dist/critters.mjs",
-    "require": "./dist/critters.js",
-    "default": "./dist/critters.mjs"
-  },
-  "typings": "src/index.d.ts",
-  "files": [
-    "src",
-    "dist"
-  ],
-  "license": "Apache-2.0",
-  "author": "The Chromium Authors",
-  "contributors": [
-    {
-      "name": "Jason Miller",
-      "email": "developit@google.com"
-    },
-    {
-      "name": "Janicklas Ralph",
-      "email": "janicklas@google.com"
-    }
-  ],
-  "keywords": [
-    "critical css",
-    "inline css",
-    "critical",
-    "critters",
-    "webpack plugin",
-    "performance"
-  ],
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/GoogleChromeLabs/critters",
-    "directory": "packages/critters"
-  },
-  "scripts": {
-    "build": "microbundle --target node --no-sourcemap -f cjs,esm",
-    "docs": "documentation readme -q --no-markdown-toc -a public -s Usage --sort-order alpha src",
-    "prepare": "npm run -s build"
-  },
-  "dependencies": {
-    "chalk": "^4.1.0",
-    "css-select": "^5.1.0",
-    "dom-serializer": "^2.0.0",
-    "domhandler": "^5.0.2",
-    "htmlparser2": "^8.0.2",
-    "postcss": "^8.4.23",
-    "postcss-media-query-parser": "^0.2.3"
-  },
-  "devDependencies": {
-    "documentation": "^13.0.2",
-    "microbundle": "^0.12.3"
-  }
-}