docs: update docusaurus to v3 (#5625)

* update dependencies

* update onboarding mdx

* fixes for mdx issues

* fixes for mdx compatibility

* resolve mdx errors

* fixes in reference

* fix check errors

* revert change in vale action

* fix node version in action

* fix summary in markdown

www/apps/docs/sidebars.js

@@ -1484,7 +1484,7 @@ module.exports = {
             },
             {
               type: "ref",
-              id: "references/services/classes/AuthService",
+              id: "references/services/classes/AbstractBatchJobStrategy",
               label: "Services Reference",
             },
             {