Added i18n support for ToDo delete labels

src/routes/todo.svelte

@@ -500,7 +500,7 @@
           <p class="flex-1 text-gray-400"># {i + 1}</p>
           <Button on:click={() => askDeleteTodo(i)} size="sm" className="px-2">
             <Icon path={mdiClose} color="white" size={0.8} />
-            Delete
+            {$t('todo.delete.delete')}
           </Button>
         </div>
       </div>