FlexibleColumnLayout: Opening of the column layout is not announced

[pppwr7]

Describe the bug

Hi Colleagus, As a part of accessibility testing, we received an issue that whenever a new column in the layout is made visible or hidden, the user is not announced regarding the same.

Isolated Example

https://sap.github.io/ui5-webcomponents-react/?path=/story/layouts-floorplans-flexiblecolumnlayout--with-different-columns

Reproduction steps

1. go to https://sap.github.io/ui5-webcomponents-react/?path=/story/layouts-floorplans-flexiblecolumnlayout--with-different-columns
2. click on any row in the table
3. New column of the layout is made visible but it is not announced.

Expected Behaviour

User should be made aware of the changes in the UI

Screenshots or Videos

No response

UI5 Web Components for React Version

latest

UI5 Web Components Version

latest

Browser

Chrome

Operating System

No response

Additional Context

No response

Relevant log output

No response

Organization

No response

Declaration

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