fix(ui-utils,ui-drilldown): make NVDA read options in Drilldown.Group…

[ToMESSKa]

… correctly in Firefox

INSTUI-4330

ISSUE:

NVDA was not properly announcing options within Drilldown.Group components in Firefox. The issues were:

• all options were announced simultaneously on focus
• the checked state of the selected option was not read
• options were not navigable with keyboard

TEST PLAN:

• with Firefox (!) and NVDA, inspect the 'Single-select Group' example
• go through the option, they should be navigable with keyboard and the checked option should be announced as checked and the options should not be announced
• other examples with a Drilldown.Group should behave the same like above (e.g.: 'Video Settings' example, 'Option Groups' example)
• on Mac with Chrome, Firefox and Safari, examples with a Drilldown.Group should have a role='group' instead of 'menu'
• because I could not define a screenreader-specific condition, the role is also changed to 'menu' in Firefox+JAWS. This results in the group titles not always being read in Firefox+JAWS, but it is still a less severe issue than the one with Firefox+NVDA.

[github-actions]

PR Preview Action v1.6.2
Preview removed because the pull request was closed.
2025-10-01 08:52 UTC

[matyasf]

looks (sounds) good!