feat: implement custom CSS generator, improve code editor support, and add media picker and HTML tag management tools

sisvietnamvn_main/html_snippets/content_main_blocks/temp.js.js

@@ -0,0 +1,11 @@
+document.addEventListener('DOMContentLoaded', function () {
+  var cards = document.querySelectorAll('.sis-hover-card-grid .row > [class*=\"col-\"]');
+  if (cards.length > 0) {
+    cards.forEach(function (card) {
+      card.addEventListener('click', function () {
+        cards.forEach(function (c) { c.classList.remove('active'); });
+        card.classList.add('active');
+      });
+    });
+  }
+});