Upgrade Docusaurus to v3 to fix sec vulnerabilities

Summary:
This CL upgrades Docusaurus version from 2 to 3.

# What changes?

This CL multiple packages as outlined in the [Docusaurs v2 to v3 migration guide](https://docusaurus.io/docs/migration/v3) and as seen working [with other known configs](https://www.internalfb.com/code/fbsource/[5278a8b5dec7c99a8917b2677732026305af9b65]/fbcode/antlir/antlir2/docs/package.json).

# Why?

Following the [staticdocs documentation](https://www.internalfb.com/intern/staticdocs/staticdocs/docs/setup/3-creating-a-site/) gives us Docusaurus v2, which comes with known security vulnerabilities.

Reviewed By: AndreasBackx

Differential Revision: D52785096

fbshipit-source-id: 75365c3a52352f430ca990a9796092771e38d38c

website/docusaurus.config.js

@@ -5,8 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-const lightCodeTheme = require('prism-react-renderer/themes/github');
-const darkCodeTheme = require('prism-react-renderer/themes/dracula');
+const lightCodeTheme = require('prism-react-renderer').themes.github;
+const darkCodeTheme = require('prism-react-renderer').themes.dracula;
 
 const {customFields} = require('./constants');
 

website/package.json

@@ -15,14 +15,14 @@
     "write-heading-ids": "docusaurus write-heading-ids"
   },
   "dependencies": {
-    "@docusaurus/core": "^2",
-    "@docusaurus/preset-classic": "^2",
-    "@mdx-js/react": "^1.6.21",
-    "clsx": "^1.1.1",
+    "@docusaurus/core": "^3.1.0",
+    "@docusaurus/preset-classic": "^3.1.0",
+    "@mdx-js/react": "^3.0.0",
+    "clsx": "^2.0.0",
     "docusaurus-plugin-internaldocs-fb": "1.16.2",
-    "prism-react-renderer": "^1.3.3",
-    "react": "^17.0.2",
-    "react-dom": "^17.0.2"
+    "prism-react-renderer": "^2.1.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0"
   },
   "browserslist": {
     "production": [
@@ -37,11 +37,11 @@
     ]
   },
   "engines": {
-    "node": ">=16",
+    "node": ">=18.0",
     "npm": "use yarn instead",
     "yarn": "^1.5"
   },
   "devDependencies": {
-    "yarn-audit-fix": "^9.3.10"
+    "yarn-audit-fix": "^10.0.7"
   }
 }