Update Docusaurus config and dependencies

Changed site URL in docusaurus.config.js, enabled experimental features, and added Bash syntax highlighting. Updated dependencies in package.json to latest versions and added @docusaurus/faster for improved build performance.

docs/package.json

@@ -2,7 +2,9 @@
   "name": "upage-docs",
   "version": "0.0.0",
   "private": true,
-  "workspaces": [".."],
+  "workspaces": [
+    ".."
+  ],
   "scripts": {
     "docusaurus": "docusaurus",
     "start": "docusaurus start",
@@ -17,13 +19,14 @@
   "dependencies": {
     "@docusaurus/core": "3.9.0",
     "@docusaurus/preset-classic": "3.9.0",
-    "@mdx-js/react": "^3.0.0",
-    "clsx": "^2.0.0",
-    "prism-react-renderer": "^2.3.0",
-    "react": "^18.0.0",
-    "react-dom": "^18.0.0"
+    "@mdx-js/react": "^3.1.1",
+    "clsx": "^2.1.1",
+    "prism-react-renderer": "^2.4.1",
+    "react": "^18.3.1",
+    "react-dom": "^18.3.1"
   },
   "devDependencies": {
+    "@docusaurus/faster": "^3.9.1",
     "@docusaurus/module-type-aliases": "3.9.0",
     "@docusaurus/types": "3.9.0"
   },