Enhancement: group nesting/subgroups

[DamitusThyYeetus123]

Proposed change

Adds Nested groups and subgroups, with the following formatting

- Group A:
  - Subgroup A:
      type: group
      services:
        - Service A:
            href: http://localhost/
  - Service B:
      href: http://localhost/

- Group B:
    - Service C:
        href: http://localhost/

Closes #2310

Type of change

• New service widget
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Documentation only
• Other (please explain)

Checklist:

• If applicable, I have added corresponding documentation changes.
• If applicable, I have reviewed the feature and / or service widget guidelines.
• I have checked that all code style checks pass using pre-commit hooks and linting checks.
• If applicable, I have tested my code for new features & regressions on both mobile & desktop devices, using the latest version of major browsers.

[shamoon]

Not to be a downer here, but can I ask what this actually accomplishes? This basically allows the user to have 1-level deeper nesting of services, ie. it adds a second level title that looks exactly the same and groups those inside a box? Also, doesnt work with docker labels

At least as is, you cannot set a different icon, use a different layout style (rows vs columns) and overall I do not find it aesthetically pleasing at all:

I hate to say it but I would not merge this as-is...

[DamitusThyYeetus123]

I’ll add all those changes you’ve mentioned, and i will say that I added it due to the fact that it’s the most requested non-widget feature in discussions.

[shamoon]

Again, most requested does not always necessarily mean belongs in this project. Sometimes features get up-voted because they've hung around for a while. I see my role as a maintainer as a steward of the project as much as anything else, i.e. to maintain its quality and keep it focused.

I worry this is going to get messy...