The global search palette emits /links?q=<title> when a user clicks a link
result, but /links had no search input — only category filter pills — so
the deep link silently landed on the unfiltered catalog.
Added a search input matching the glossary/courts pattern: live keystroke
filtering across title + DE/EN description + URL, combined with the
existing category filter, and ?q= URL prefill on init. Result count chip
("2 / 47") added next to the input for parity with the other catalogs.
i18n: links.search.placeholder added in DE + EN.
044166ffed