Feature: uui-divider component

[bjarnef]

Description

Added a new uui-divider component similar to this: https://shoelace.style/components/divider/
I think it may to useful to separate content, menu items etc.

It can possible also replace divider here in CMS (unless we want a separate component for this or split panel like this: https://shoelace.style/components/split-panel/ )

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Chore (minor updates related to the tooling or maintenance of the repository, does not impact compiled assets)

Motivation and context

How to test?

Screenshots (if appropriate)

Checklist

• If my change requires a change to the documentation, I have updated the documentation in this pull request.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[github-actions]

Hi there @bjarnef, thank you for this contribution! 👍

While we wait for the team to have a look at your work, we wanted to let you know about that we have a checklist for some of the things we will consider during review:

• It's clear what problem this is solving, there's a connected issue or a description of what the changes do and how to test them
• The automated tests all pass (see "Checks" tab on this PR)
• The level of security for this contribution is the same or improved
• The level of performance for this contribution is the same or improved
• Avoids creating breaking changes; note that behavioral changes might also be perceived as breaking
• If this is a new feature, Umbraco HQ provided guidance on the implementation beforehand
• 💡 The contribution looks original and the contributor is presumably allowed to share it

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[Copilot]

Pull Request Overview

This pull request adds a new uui-divider component to the project.

• Introduces the divider component files (element, tests, stories, etc.).
• Updates the main index exports and project configuration files to incorporate the new component.

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/uui/lib/index.ts	Added export for the uui-divider package
packages/uui-divider/tsconfig.json	Created TS configuration for the divider component
packages/uui-divider/rollup.config.js	Configured rollup for uui-divider package
packages/uui-divider/package.json	Defined package details and dependencies
packages/uui-divider/lib/uui-divider.test.ts	Added tests for the divider component
packages/uui-divider/lib/uui-divider.story.ts	Added storybook stories for the divider component
packages/uui-divider/lib/uui-divider.element.ts	Implemented the divider component with customizable props
packages/uui-divider/lib/index.ts	Set up component export
packages/uui-divider/README.md	Documented component installation and usage

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud