PLAYRTS-5553 Improve SwiftUI previews

[pyby]

Description

Following #493, minors typo updates.

Changes Made

• Add the same long label for previews.
• Run Xcode "Run Structure / Re-indent".

Checklist

• I have followed the project's style guidelines.
• I have performed a self-review of my own changes.
• I have made corresponding changes to the documentation.
• My changes do not generate new warnings.
• I have tested my changes and I am confident that it works as expected and doesn't introduce any known regressions.
• I have reviewed the contribution guidelines.