Restore hx-swap-oob on artist list for search dropdown responses

src/main/resources/templates/fragments/artist-list.html

@@ -1,4 +1,4 @@
-<div id="artist-list">
+<div id="artist-list" hx-swap-oob="true">
 {#if artists.isEmpty()}
 <div class="bg-base-200" style="border:1px solid var(--fallback-b3,oklch(var(--b3)/1));border-radius:0.5rem;padding:2.5rem;text-align:center">
   <svg class="icon-lg text-base-content/20" style="margin:0 auto 0.75rem" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round">