[ui5-popover / ui5-dialog]: can't be closed with escape key

[nnaydenow]

Bug Description

ui5-popover / ui5-dialog can't be closed with escape key (it's only reproducible in storybook context and not in test pages)

https://sap.github.io/ui5-webcomponents/playground/?path=/docs/main-popover--popover-overview

Affected Component

No response

Expected Behaviour

No response

Isolated Example

No response

Steps to Reproduce

...

Log Output, Stack Trace or Screenshots

No response

Priority

None

UI5 Web Components Version

1.22.0

Browser

Chrome

Operating System

No response

Additional Context

No response

Organization

No response

Declaration

• [X] I’m not disclosing any internal or sensitive information.