docs: update to next 15 + eslint 9 (#9839)

* update next

* updated react

* update eslint

* finish updating eslint

* fix content lint errors

* fix docs test

* fix vale action

* fix installation errors

www/package.json

@@ -20,13 +20,25 @@
   },
   "dependencies": {
     "autoprefixer": "10.4.14",
-    "eslint": "^8.36.0",
+    "eslint": "^9.13.0",
     "postcss": "8.4.27",
-    "prettier": "^2.8.4",
+    "prettier": "^3.3.3",
     "tailwindcss": "3.3.3",
     "tsconfig": "*",
     "turbo": "latest"
   },
+  "devDependencies": {
+    "@babel/eslint-parser": "^7.25.9",
+    "@eslint/js": "9.13.0",
+    "@types/eslint__js": "8.42.3",
+    "eslint-config-next": "15.0.1",
+    "eslint-config-prettier": "9.1.0",
+    "eslint-config-turbo": "2.2.3",
+    "eslint-plugin-markdown": "5.1.0",
+    "eslint-plugin-prettier": "5.2.1",
+    "eslint-plugin-react": "7.37.2",
+    "typescript-eslint": "8.11.0"
+  },
   "engines": {
     "node": ">=18.17.0"
   }