Hide delete action for completed research

src/routes/research/[id]/+page.svelte

@@ -234,6 +234,7 @@
                     on:share={onShare}
                     on:revoke={onRevoke}
                 />
+                {#if statusText !== 'COMPLETED'}
                     <button
                         on:click={handleDelete}
                         class="p-1.5 rounded text-gray-400 hover:text-red-500 hover:bg-red-50 dark:hover:bg-red-900/20 transition-colors"
@@ -243,6 +244,7 @@
                             <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16"></path>
                         </svg>
                     </button>
+                {/if}
             </div>
         </div>
     </div>