Updated hellobar to be smaller and hide on mobile devices

src/components/homepage/HelloBar.jsx

@@ -1,28 +1,27 @@
 import React from 'react';
 import Link from '@docusaurus/Link';
 import { ChevronRight, GitHub } from 'react-feather';
-import clsx from 'clsx';
 
 function HelloBar() {
     return (
       <a
         href="https://avaloniaui.net/xpf?utm_source=docs&utm_medium=referral&utm_content=hellobar"
         target="_blank"
-        className="hello-bar u-hflex-center-center w-inline-block"
+        className="hidden md:flex w-full items-center justify-center bg-blue-50 py-2 hover:bg-blue-100 transition-colors"
       >
-        <div className="hello_bar_contents u-hflex-center-center u-gap-10">
-          <div className="ph_cat_nd_txt-wrapper u-hflex-left-center u-gap-10">
-            <div className="ph_banner_txt">
+        <div className="flex items-center justify-center gap-4 px-4">
+          <div className="flex items-center gap-3">
+            <div className="text-sm font-medium text-blue-900">
               Introducing Avalonia XPF: A cross-platform fork of WPF 
             </div>
           </div>
-          <div className="banner_separator"></div>
-          <div className="hello_bar_cta u-hflex-left-center u-gap-8">
-            <div className="text-block-98">Try it today</div>
+          <div className="h-4 w-px bg-blue-200"></div>
+          <div className="flex items-center gap-2">
+            <div className="text-sm font-medium text-blue-700">Try it today</div>
           </div>
         </div>
       </a>
     );
   }
 
-  export default HelloBar;
+export default HelloBar;