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/apps/book/components/Homepage/TopSection/index.tsx

@@ -1,4 +1,3 @@
-/* eslint-disable @next/next/no-img-element */
 import clsx from "clsx"
 import { BookIcon, Card, IconHeadline, WindowPaintbrushIcon } from "docs-ui"
 import { basePathUrl } from "../../../utils/base-path-url"