chore(website): Update docusarus v3.8, improve build perf (#4209)

* Update docusaurus to v3.8, improve performance

Docusaurus:
- Update to v3.8.0
- Enable new faster features, rspack bundler cache and worker threads
- Update CI to cache rspack bundler cache
- Update dependencies to latest versions
- Update blog posts to use the truncate tag
- Update caniuse-lite

Removed duplicated type documentation generation for bot package

* Use .jsonc files for typedoc
And use the readme option instead of a custom script

* remvoe typedoc script

---------

Co-authored-by: Jonathan Ho <heiheiho000@gmail.com>

scripts/finalizeTypedocs.js

@@ -1,18 +0,0 @@
-import { writeFile } from 'node:fs/promises'
-import typedocConfig from '../typedoc.json' with { type: 'json' }
-
-const typedocOutPath = typedocConfig.out
-
-await writeFile(
-  `${typedocOutPath}/README.md`,
-  [
-    '[**Documentation**](README.md) • **Docs**',
-    '',
-    '***',
-    '',
-    '# Discordeno',
-    '',
-    'Thank you for using Discordeno. These docs are generated automatically. If you see any issues please contact us on [Discord](https://discord.gg/ddeno)',
-    '',
-  ].join('\n'),
-)