Remove menu zIndex tailwind config

Author: RoyalIcing

assets/tailwind.config.js

@@ -15,9 +15,6 @@ module.exports = {
     extend: {
       colors: {
         current: 'currentColor',
-      },
-      zIndex: {
-        'menu': 'var(--z-menu)'
       }
     },
   },

lib/components_guide_web/templates/layout/_banner.html.heex

@@ -4,7 +4,7 @@
       <summary class="block w-48 text-left pl-6 text-base uppercase font-bold tracking-wider">
         Menu
       </summary>
-      <details-menu role="menu" class="absolute z-menu top-full left-0 flex flex-col px-4 py-2 text-left text-lg whitespace-nowrap bg-gray-900 rounded shadow-lg">
+      <details-menu role="menu" class="absolute z-[var(--z-menu)] top-full left-0 flex flex-col px-4 py-2 text-left text-lg whitespace-nowrap bg-gray-900 rounded shadow-lg">
         <%= link("React Playground", to: '/react-playground') %>
         <%= link("Developer Calendar", to: '/calendar') %>
         <%= link("Accessibility First", to: '/accessibility-first') %>