chore(scripts): generic way to build scripts (#829)

* chore: move core scripts

* chore: extract head scripts

assets/js/core/menu.js

@@ -0,0 +1,40 @@
+// Hamburger menu for mobile navigation
+
+document.addEventListener('DOMContentLoaded', function () {
+  const menu = document.querySelector('.hextra-hamburger-menu');
+  const sidebarContainer = document.querySelector('.hextra-sidebar-container');
+
+  function toggleMenu() {
+    // Toggle the hamburger menu
+    menu.querySelector('svg').classList.toggle('open');
+
+    // When the menu is open, we want to show the navigation sidebar
+    sidebarContainer.classList.toggle('hx:max-md:[transform:translate3d(0,-100%,0)]');
+    sidebarContainer.classList.toggle('hx:max-md:[transform:translate3d(0,0,0)]');
+
+    // When the menu is open, we want to prevent the body from scrolling
+    document.body.classList.toggle('hx:overflow-hidden');
+    document.body.classList.toggle('hx:md:overflow-auto');
+  }
+
+  menu.addEventListener('click', (e) => {
+    e.preventDefault();
+    toggleMenu();
+  });
+
+  // Select all anchor tags in the sidebar container
+  const sidebarLinks = sidebarContainer.querySelectorAll('a');
+
+  // Add click event listener to each anchor tag
+  sidebarLinks.forEach(link => {
+    link.addEventListener('click', (e) => {
+      // Check if the href attribute contains a hash symbol (links to a heading)
+      if (link.getAttribute('href') && link.getAttribute('href').startsWith('#')) {
+        // Only dismiss overlay on mobile view
+        if (window.innerWidth < 768) {
+          toggleMenu();
+        }
+      }
+    });
+  });
+});