[BHP1-1534] Adjust Group/Subgroups in Standard match Guided

[rjsheperd]

Purpose

Adjusts Submodules / Groups / Subgroups to ensure it's possible to
distinguish between the different levels. Creates both padding to
assume a more 'tree-like' structure. All "Leafs" are given identical
backgrounds to ensure consistency (see blue, that's an user input).

Related Issues

Closes BHP1-1534

Submission Checklist

• Included Jira issue in the PR title (e.g. BHP1-### <title>)
• Code passes linter rules (clj-kondo --lint components/**/src bases/**/src projects/**/src)
• Feature(s) work when compiled (clojure -M:compile-cljs)

Testing

1. Open a new Standard Workflow with Surface & Crown
2. Verify that Groups are now colored with a border that match their
   Module (e.g. Orange for Contain, Green for Surface)
3. Select 'Rate of Spread' output, go to inputs
4. Verify that Fuel Model / Standard / Fuel Model show a tree-like
   indentation, and that Fuel Model subgroup is a blue background.

Screenshots

[Kcheung42]

Looks good! except for some linting errors