chore: update dependencies and configuration for Docusaurus (#377)

- Upgraded Docusaurus packages to version 3.9.2 for core, plugins, and
presets.
- Updated React and related packages to version 19.2.0.
- Enhanced markdown link handling by moving the `onBrokenMarkdownLinks`
option into the markdown configuration.
- Updated various development dependencies, including TypeScript and
Vitest, to their latest versions.

Before Submitting This PR, Please Ensure You Have Completed The
Following:

1. [ ] Are internal links to wiki documents using [relative file
links](https://docusaurus.io/docs/markdown-features/links)?
2. [ ] Are all new documentation files lowercase, with dash separated
names (ex. unraid-os.mdx)?
3. [ ] Are all assets (images, etc), located in an assets/ subfolder
next to the .md/mdx files?
4. [ ] Have you checked to ensure there aren't other open [Pull
Requests](../../../pulls) for the same update/change?
5. [ ] Is the build succeeding?


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Chores**
* Upgraded React (v18 → v19), Docusaurus (v3.8.1 → v3.9.2), and
TypeScript (v5.4.5 → v5.9.3)
  * Updated supporting development and build tools
* Removed unused build scripts and refactored configuration
infrastructure
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: elibosley

docs/docs-home.mdx

@@ -3,8 +3,6 @@ slug: /
 sidebar_position: 0
 ---
 
-import Term from "@lunaticmuch/docusaurus-terminology/components/tooltip.js";
-
 # Unraid Docs
 
 Welcome to the official Unraid documentation! This comprehensive resource is designed to help you get the most out of your Unraid server, whether you're setting up your first system or managing a complex homelab environment.

docusaurus.config.ts

@@ -50,10 +50,14 @@ const config: Config = {
   projectName: "docs", // Usually your repo name.
 
   onBrokenLinks: "warn",
-  onBrokenMarkdownLinks: "warn",
   // Even if you don't use internalization, you can use this field to set useful
   // metadata like html lang. For example, if your site is Chinese, you may want
   // to replace "en" with "zh-Hans".
+  markdown: {
+    hooks: {
+      onBrokenMarkdownLinks: "warn",
+    },
+  },
   i18n: {
     defaultLocale: DEFAULT_LOCALE,
     locales: ["en", "es", "fr", "de", "zh"],

i18n/de/docusaurus-plugin-content-docs/current/docs-home.mdx

@@ -3,8 +3,6 @@ slug: /
 sidebar_position: 0
 ---
 
-import Term from "@lunaticmuch/docusaurus-terminology/components/tooltip.js";
-
 # Unraid-Dokumentation
 
 Willkommen zur offiziellen Unraid-Dokumentation! Diese umfassende Ressource soll Ihnen helfen, das Beste aus Ihrem Unraid-Server herauszuholen, egal ob Sie Ihr erstes System einrichten oder eine komplexe Homelab-Umgebung verwalten.

i18n/es/docusaurus-plugin-content-docs/current/docs-home.mdx

@@ -3,8 +3,6 @@ slug: /
 sidebar_position: 0
 ---
 
-import Term from "@lunaticmuch/docusaurus-terminology/components/tooltip.js";
-
 # Documentos de Unraid
 
 ¡Bienvenido a la documentación oficial de Unraid! Este recurso integral está diseñado para ayudarte a sacar el máximo provecho de tu servidor Unraid, tanto si estás configurando tu primer sistema como si estás gestionando un entorno de homelab complejo.

i18n/fr/docusaurus-plugin-content-docs/current/docs-home.mdx

@@ -3,8 +3,6 @@ slug: /
 sidebar_position: 0
 ---
 
-import Term from "@lunaticmuch/docusaurus-terminology/components/tooltip.js";
-
 # Unraid Docs
 
 Bienvenue dans la documentation officielle d'Unraid ! Cette ressource complète est conçue pour vous aider à tirer le meilleur parti de votre serveur Unraid, que vous configuriez votre premier système ou que vous gériez un environnement homelab complexe.

i18n/zh/docusaurus-plugin-content-docs/current/docs-home.mdx

@@ -3,8 +3,6 @@ slug: /
 sidebar_position: 0
 ---
 
-import Term from "@lunaticmuch/docusaurus-terminology/components/tooltip.js";
-
 # Unraid 文档
 
 欢迎使用官方的 Unraid 文档！这一全面的资源旨在帮助您充分利用您的 Unraid 服务器，无论您是在设置首个系统，还是管理一个复杂的家庭实验室环境。