[Stack] Add 'SpaceBetween' and 'stretch' to horizontal and vertical alignment options (#3142)

[f4n0]

Pull Request

📖 Description

This PR adds a SpaceBetween value to the HorizontalAlignment and Stretch and SpaceBetween to VerticalAlignment (not shown in image below):

🎫 Issues

Fix #3142

👩‍💻 Reviewer Notes

📑 Test Plan

✅ Checklist

General

• I have added tests for my changes.
• I have tested my changes.
• I have updated the project documentation to reflect my changes.
• I have read the CONTRIBUTING documentation and followed the standards for this project.

Component-specific

• I have added a new component
• I have added Unit Tests for my new component
• I have modified an existing component
• I have validated the Unit Tests for an existing component

⏭ Next Steps

[dvoituron]

@f4n0 Thank you very much for these changes. Can you please update the PR description, adding the new Horizontal and Vertical values. To have a correct explanation of the new features in the release notes and documentation.