feat(web/m7-377): artist detail moves LikeButton inline with heading at size lg

web/src/routes/artists/[id]/+page.svelte

@@ -69,7 +69,10 @@
     {@const detail = query.data}
     <header class="flex items-center gap-4">
       <div class="min-w-0 flex-1">
-        <h1 class="font-display text-2xl font-medium text-text-primary">{detail.name}</h1>
+        <div class="flex items-center gap-3">
+          <h1 class="font-display text-2xl font-medium text-text-primary">{detail.name}</h1>
+          <LikeButton entityType="artist" entityId={detail.id} size="lg" />
+        </div>
         <p class="text-sm text-text-secondary">
           {detail.album_count} {detail.album_count === 1 ? 'album' : 'albums'}
         </p>
@@ -83,7 +86,6 @@
       >
         <Play size={24} strokeWidth={1.5} fill="currentColor" class="ml-0.5" />
       </button>
-      <LikeButton entityType="artist" entityId={detail.id} />
     </header>
 
     {#if detail.albums.length === 0}