feat: add HasSize to Details

[jcgueriaud1]

Description

Please list all relevant dependencies in this section and provide summary of the change, motivation and context.

Fixes #1294

Type of change

• Bugfix
• Feature

Checklist

• I have read the contribution guide: https://vaadin.com/docs-beta/latest/guide/contributing/overview/
• I have added a description following the guideline.
• The issue is created in the corresponding repository and I have referenced it.
• I have added tests to ensure my change is effective and works as intended.
• New and existing tests are passing locally with my change.
• I have performed self-review and corrected misspellings.

Additional for Feature type of change

• Enhancement / new feature was discussed in a corresponding GitHub issue and Acceptance Criteria were created.

I didn't add any tests since there is no test for the other components.

[vaadin-bot]

SonarQube analysis reported 1 issue

1. Details.java#L9: This block of commented-out lines of code should be removed.

[vaadin-bot]

This ticket/PR has been released with platform 22.0.0.beta2 and is also targeting the upcoming stable 22.0.0 version.