Improvements in the dotcms/ui package

[nicobytes]

Parent Issue

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Task

• [ ] Use the new Angular syntax
• [ ] Use Jest for unit testing
• [ ] Organize folders

Proposed Objective

Code Maintenance

Proposed Priority

Priority 4 - Trivial

Acceptance Criteria

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External Links... Slack Conversations, Support Tickets, Figma Designs, etc.

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Assumptions & Initiation Needs

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Quality Assurance Notes & Workarounds

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Sub-Tasks & Estimates

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### Tasks
- [ ] https://github.com/dotCMS/core/issues/29050
- [ ] https://github.com/dotCMS/core/issues/29013
- [ ] https://github.com/dotCMS/core/issues/29015