Remove unused values

public/js/like_toggle.js

@@ -1,9 +1,8 @@
 document.addEventListener('DOMContentLoaded', function() {
     document.querySelectorAll('.like-toggle').forEach(button => {
-        button.addEventListener('click', function(event) {
+        button.addEventListener('click', function (event) {
             event.preventDefault();
 
-            let postId = this.dataset.postId;
             let isLiked = this.classList.contains('liked');
             let url = isLiked ? this.dataset.unlikeUrl : this.dataset.likeUrl;
 
@@ -20,7 +19,7 @@ document.addEventListener('DOMContentLoaded', function() {
                             likesCount++;
                         }
 
-                        likesCountElement.textContent = likesCount;
+                        likesCountElement.textContent = likesCount.toString();
                         this.classList.toggle('liked');
                         this.classList.toggle('not-liked');
                         this.innerHTML = isLiked ? '♡' : '❤️';