feat(stellungnahme): Button subtiles Wiggle-Rotate statt bounce

src/lib/components/blocks/StellingnahmeGeneratorBlock.svelte

@@ -895,7 +895,7 @@ ${"=".repeat(64)}`;
 
       <div class="mb-2 flex gap-3">
         <button class="rounded-lg border border-stein-300 px-4 py-2 text-sm text-stein-600 hover:bg-stein-50" onclick={() => goTo(3)}>← Zurück</button>
-        <button
+        <button
           class="btn-wiggle rounded-lg bg-wald-700 px-6 py-2.5 font-semibold text-white transition hover:bg-wald-800 disabled:opacity-40"
           disabled={!absenderName.trim()}
           onclick={generateOutput}
@@ -963,3 +963,19 @@ ${"=".repeat(64)}`;
       {/if}
     </div>
   {/if}
+</section>
+
+<style>
+  @keyframes wiggle {
+    0%, 100% { transform: rotate(0deg); }
+    20% { transform: rotate(-2deg); }
+    40% { transform: rotate(2deg); }
+    60% { transform: rotate(-1.5deg); }
+    80% { transform: rotate(1.5deg); }
+  }
+  .btn-wiggle {
+    animation: wiggle 2.4s ease-in-out infinite;
+  }
+  .btn-wiggle:hover {
+    animation: none;
+  }