docs: update versioning schemes (#3130)

* docs: update versions on docs page

* docs: resolve broken paths

* docs: show warn on broken link (makes build pass)

* wip: add v17 version

* docs: manually set versions; reflect current route in selector

* docs: cleanup docs - rm outdated; update versioning

* docs: docusaurus configs

* docs: setup redirect to /main; update configs

Author: MSalopek