feat: add contact form and about page accordion feature

src/scripts/accordion.js

@@ -0,0 +1,14 @@
+document.addEventListener('DOMContentLoaded', (event) => {
+  const accordionHeaders = document.querySelectorAll('.accordion-header');
+
+  accordionHeaders.forEach(header => {
+    header.addEventListener('click', () => {
+      const content = header.nextElementSibling;
+      if (content.style.display === 'block') {
+        content.style.display = 'none';
+      } else {
+        content.style.display = 'block';
+      }
+    });
+  });
+});