Merge pull request #27722 from backstage/revert-docusaurus-3.6

Revert "Upgraded microsite to Docusaurus 3.6"

microsite/docusaurus.config.ts

@@ -444,8 +444,5 @@ const config: Config = {
       ],
     },
   } satisfies Preset.ThemeConfig,
-  future: {
-    experimental_faster: true,
-  },
 };
 export default config;

microsite/package.json

@@ -19,10 +19,10 @@
   },
   "prettier": "@spotify/prettier-config",
   "dependencies": {
-    "@docusaurus/core": "^3.6.0",
-    "@docusaurus/plugin-client-redirects": "^3.6.0",
-    "@docusaurus/preset-classic": "^3.6.0",
-    "@docusaurus/types": "^3.6.0",
+    "@docusaurus/core": "^3.1.1",
+    "@docusaurus/plugin-client-redirects": "^3.1.1",
+    "@docusaurus/preset-classic": "^3.1.1",
+    "@docusaurus/types": "^3.1.1",
     "@mdx-js/react": "^3.0.0",
     "@swc/core": "^1.3.46",
     "clsx": "^2.0.0",
@@ -36,9 +36,8 @@
     "swc-loader": "^0.2.3"
   },
   "devDependencies": {
-    "@docusaurus/faster": "^3.6.0",
-    "@docusaurus/module-type-aliases": "^3.6.0",
-    "@docusaurus/tsconfig": "^3.6.0",
+    "@docusaurus/module-type-aliases": "^3.1.1",
+    "@docusaurus/tsconfig": "^3.1.1",
     "@spotify/prettier-config": "^15.0.0",
     "@types/luxon": "^3.0.0",
     "@types/webpack-env": "^1.18.0",