fix: update footer layout and delete unused code

index.html

@@ -44,7 +44,6 @@
           <div class="mt-5 sm:mt-10 lg:col-span-5 lg:mt-0">
             <div class="space-y-6 sm:space-y-8">
               <div class="space-y-2 md:space-y-4">
-                <!-- <h2 class="mb-6 max-w-lg text-xl font-bold tracking-tight text-gray-900 sm:text-4xl md:mx-auto md:leading-tight"> -->
                 <h2 class="text-2xl font-semibold sm:text-3xl md:leading-tight lg:text-4xl">
                   <span class="relative inline-block">
                     <svg viewBox="0 0 52 24" fill="currentColor" class="text-blue-gray-100 absolute left-0 top-0 z-0 -ml-20 -mt-8 hidden w-32 lg:-ml-28 lg:-mt-10 lg:block lg:w-32">
@@ -170,7 +169,7 @@ <h3 class="text-xl font-semibold text-gray-800">Mops</h3>
     <!-- ========== FOOTER ========== -->
     <footer class="mx-auto mt-auto w-full py-10">
       <div class="mt-5 border-t border-gray-200 pt-5">
-        <div class="max-w-screen-xl px-4 sm:mx-auto sm:flex sm:items-center sm:justify-between">
+        <div class="max-w-screen-xl px-4 sm:mx-auto flex items-center justify-between">
           <div class="flex flex-wrap items-center gap-3">
             <p class="text-sm text-gray-600">© 2024 <a href="https://papua-opensource.github.io/" class="hover:underline">Papua Open Source</a>.</p>
           </div>