chore(apps): updates to disabled sb a11y tests

[oddvernes]

resolves #3245

I do not get any violations if I re-enable aria-allowed-attr rule, so I have removed this.

The "combobox role not allowed on input" problem in Suggestion/Multisuggestion seems to possibly stem from this reported issue in axe-core.

The logic axe-core uses vs the logic the spec uses for determining when text/tel/url/email/search should be treated as comboboxes is also slightly different; the spec says that the presence of a list attribute is enough that it should be treated as combobox-like, but axe-core demands that it not just have a list attribute but that the list attribute be a valid idrefs-style reference to a datalist element (html-elms.js is inconsistent with implicit-html-roles.js and just looks for any list attribute)

Specifically this check in implicit-html-roles.js
suggestionsSourceElement = listElement && listElement.nodeName.toLowerCase() === 'datalist';
In our code this returns u-datalist.

Then in get-element-unallowed-roles.js there is now a mismatch between explicit and implicit role returning false for roleIsAllowed

If I change the element to datalist in SuggestionList.tsx I no longer get the violation in storybook.

Conclusion: it should fix itself in a future update of @storybook/addon-a11y after the axe-core issue linked above has been resolved and published

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Storybook - 11. Mar 2025 - 16:01

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