Geo Status Page 2.0 - Take over `geo_node` namespace

Vision

Based on proposal described here: &4712 (closed)
Code to ultimately be replaced: https://gitlab.com/gitlab-org/gitlab/-/tree/master/ee/app/assets/javascripts/geo_nodes

This issue will be focused on renaming the geo_nodes_beta technical namespace to the expected geo_nodes techincal namespace. As of #296986 (closed) all the legacy Geo Node code should have been deleted from our codebase so this namespace should be open for a quick and easy rename.

How

Simply replacing all the geo_nodes_beta namespacing implemented as part of the above epic with the geo_nodes namespacing.