Add role="presentation" for Empty Alt Text in Image Block

[benniledl]

I’ve noticed that the Image Block in your plugin doesn’t automatically add the role="presentation" attribute when the alt text is left empty. This is important for accessibility compliance, as decorative images should explicitly be marked as presentational to ensure a better experience for screen reader users and meet standards like the European Accessibility Act (EAA) and WCAG 2.1.

Without this functionality, websites using your plugin may risk being non-compliant with EU accessibility laws, which could lead to legal and financial consequences for website owners.

Could you consider implementing this functionality in future updates? It would greatly enhance accessibility support and align with best practices.