Security: Use aria-controls instead of href in link category tab

[SainathPoojary]

Trac ticket: #65573

[Copilot]

Pull request overview

Updates the link category tab-switching logic in the admin Link editor to use aria-controls as the source of the target panel ID, aligning tab behavior more closely with ARIA semantics and reducing reliance on href values.

Changes:

• Read the target tab panel from aria-controls rather than href.
• Update tab-panel selection and the “All categories” comparison to match the new aria-controls value format (no leading #).

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[github-actions]

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[Copilot]

Pull request overview

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[github-actions]

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