Refs #26198 - Replace foreman_url with tfm.tools.foremanURL

ac1fe0d moved the foreman_url js function to webpack and deprecated the
old version but there were still a couple of places calling it causing
warnings in the console. This replaces those use cases with the newer...

Fixes #26590 - Rename template snippets

Rename provisioning template snippets to not start with '_' as rails
template partials. This will match better, what we see in
community-templates, and will allow to do a directory comparison via diff.

Script used:...

Fixes #26572 - Validate MTU minimum

fixes #26490 - graphql: add hostgroup queries

fixes #26487 - user login with graphql

fixes #26488 - graphql: add currentUser query

Fixes #26634 - Handle (none) certificates in SmartProxyAuth

When visiting the page from behind a reverse proxy this value can end up
as (none) and then fails to parse. This special cases it.

templates - sync from community-templates

Fixes #26617 - Properly expose puppetclass_name

fixes #26554 - move class_edit to webpack.

this is a pure move + lint, no code changes introduced.