Update theme styles, scripts, and front page template

assets/js/main.js

@@ -9,3 +9,25 @@
     toggle.setAttribute('aria-expanded', isOpen ? 'true' : 'false');
   });
 })();
+
+(function () {
+  var tabs = document.querySelectorAll('.showcase-tab');
+  if (!tabs.length) return;
+
+  tabs.forEach(function (tab) {
+    tab.addEventListener('click', function () {
+      var targetId = tab.getAttribute('data-tab-target');
+
+      tabs.forEach(function (t) {
+        t.classList.remove('is-active');
+        t.setAttribute('aria-selected', 'false');
+      });
+      tab.classList.add('is-active');
+      tab.setAttribute('aria-selected', 'true');
+
+      document.querySelectorAll('.showcase-panel').forEach(function (panel) {
+        panel.classList.toggle('is-active', panel.id === 'tab-' + targetId);
+      });
+    });
+  });
+})();