[#285] Fix VoiceOver issue with element grouping in presentation tokens for demo app

[Tayebsed93]

Note: Please transform - [ ] into - (NA) in the description when things are not applicable

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Description

Motivation & Context

Types of change

• Bug fix (non-breaking which fixes an issue)

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Checklist

Contribution

• I have read the contributing guidelines

Accessibility

• My change follows accessibility good practices

Design

• My change respects the design guidelines of Orange Unified Design System

Development

• My change follows the developer guide
• I checked my changes do not add new SwiftLint warnings
• I have added unit tests to cover my changes (optional)

Documentation

• My change introduces changes to the documentation and/or I have updated the documentation accordingly

Checklist (for Core Team only)

• The evolution have been tested and the project builds for iPhones and iPads
• Code review has been done by reviewers according to CODEOWNERS file
• Design review has been done
• Accessibiltiy review has been done
• Q/A team has tested the evolution
• Documentation has been updated if relevant
• Internal files have been updated if relevant (like CONTRIBUTING, DEVELOP, THIRD_PARTY, CONTRIBUTORS, NOTICE)
• CHANGELOG has been updated respecting keep a changelog rules and reference the issues
• The wiki has been updated if needed (optional)

[pylapp]

Le CHANGELOG n'est pas bon.

[pylapp]

Le CHANGELOG n'est toujours pas bon.

[pylapp]

LGTM!