Highlight active dashboard stats card

[JLG-WOCFR-DEV]

Summary

• detect the currently selected broken-link filter and add an active class/aria-current on the corresponding dashboard stat card
• style the active stat card for both default and dark color schemes so it remains distinguishable from hover/focus states

Testing

• not run

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https://chatgpt.com/codex/tasks/task_e_68e03b9e529c832e8ed2333db099b8fc

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Guard sanitize_key against array input

The new link_type detection calls sanitize_key( wp_unslash( $_GET['link_type'] ) ) without validating the query parameter’s shape. If someone hits the dashboard with ?link_type[]=foo (or any non‑scalar value), sanitize_key() feeds that array into strtolower() and PHP 8 throws a fatal TypeError, breaking the entire page. Consider ensuring $_GET['link_type'] is a scalar before sanitizing or casting so the dashboard can’t be taken down by a malformed request.

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