Move segment shortcut next to Edit button, shorten to '+ segment'

site/src/components/ActivityDetail.svelte

@@ -263,6 +263,12 @@
           Edit
         </button>
       {/if}
+      {#if trackUrl}
+        <a
+          href="{base}segments/new/?activity={activity.id}"
+          class="text-xs px-2 py-0.5 rounded border border-zinc-700 text-zinc-400 hover:border-zinc-500 hover:text-white transition-colors shrink-0"
+        >+ segment</a>
+      {/if}
     </div>
     {#if descriptionHtml}
       <div class="text-zinc-400 mt-2 text-sm leading-relaxed [&_img]:rounded-lg [&_img]:my-2 [&_p]:my-1 [&_a]:text-blue-400">
@@ -329,16 +335,6 @@
   </div>
 </div>
 
-<!-- Create segment shortcut -->
-{#if trackUrl}
-  <div class="mt-3 flex justify-end">
-    <a
-      href="{base}segments/new/?activity={activity.id}"
-      class="text-xs px-3 py-1.5 rounded-lg border border-zinc-700 text-zinc-400 hover:border-zinc-500 hover:text-white transition-colors"
-    >+ Create segment from this activity</a>
-  </div>
-{/if}
-
 <!-- Charts -->
 {#if error}
   <p class="text-red-400 text-sm mt-4">{error}</p>