fixed some redundant html

skythread.js

···
   if (post.missing) {
     p.innerHTML = `<i class="fa-solid fa-ban"></i> parent post has been deleted`;
   } else {
-    let link = document.createElement('a');
     let url = linkToPostThread(post);
-    link.innerHTML = `<i class="fa-solid fa-reply"></i><a href="${url}">See parent post (@${post.author.handle})</a>`;
-    p.appendChild(link);    
+    p.innerHTML = `<i class="fa-solid fa-reply"></i><a href="${url}">See parent post (@${post.author.handle})</a>`;
   }
 
   return p;