fix(ui): roter NEU-Badge, separate Nav-Pills, Footer-Headlines + Spalten

- AnnouncementBanner: führendes **bold** rendert als roter Pill-Badge
- Header: Kalender/Adressbuch/Suche je eigene Pill statt geteiltem Container
- LinkListBlock: uppercase raus, >4 Links → 4er-Spalten ab sm

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/lib/components/blocks/LinkListBlock.svelte

@@ -30,9 +30,15 @@
 
 <div class="link-list {layoutClasses}" data-block="LinkList" data-block-type="link_list" data-block-slug={block._slug}>
   {#if block.headline}
-    <h3 class="mb-3 text-sm font-semibold tracking-wide uppercase">{block.headline}</h3>
+    <h3 class="mb-3 text-sm font-semibold">{block.headline}</h3>
   {/if}
-  <ul class={iconOnlyAll ? "flex flex-wrap gap-3" : "flex flex-col gap-1.5"}>
+  <ul
+    class={iconOnlyAll
+      ? "flex flex-wrap gap-3"
+      : links.length > 4
+        ? "grid grid-flow-row gap-x-8 gap-y-1.5 sm:grid-flow-col sm:grid-rows-4"
+        : "flex flex-col gap-1.5"}
+  >
     {#each links as link}
       {@const hasIcon = !!link.icon}
       {@const showText = link.showText !== false}