[stable28] fix(settings): federation scope menu a11y

[backportbot[bot]]

Backport of #43098

Warning, This backport's changes differ from the original and might be incomplete ⚠️

Todo

• [ ] Review and resolve any conflicts
• [ ] Remove all the empty commits

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Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[ShGKme]

/compile amend