add Docker build frontend

frontend/src/scripts/header.js

@@ -0,0 +1,11 @@
+export const initHeader = () => {
+  const headerBurger = document.querySelector('.header__burger');
+  const mobileHeader = document.querySelector('.header-mobile');
+
+  if (headerBurger && mobileHeader) {
+    headerBurger.addEventListener('click', () => {
+      mobileHeader.classList.toggle('is-active');
+      headerBurger.classList.toggle('is-active');
+    });
+  }
+};