fix(web-app): resolve hover contrast, sidebar layout shift, and mobile drawer bugs steam-bell-92#1279

Author: omnipotentchaos

web-app/404.html

@@ -12,9 +12,7 @@
   <link rel="preconnect" href="https://fonts.googleapis.com">
   <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
   <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700;800;900&family=JetBrains+Mono:wght@400;600;700&display=swap" rel="stylesheet">
-  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css"
-      integrity="sha384-iYQieczLE1ZYcx91pNAt4whAqKhW2ED8oBkFkXhNRCGF7GcCQBQb0or7TGoBMgo"
-      crossorigin="anonymous">
+  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css" integrity="sha512-iecdLmaskl7CVkqkXNQ/ZH/XLlvWZOJyj7Yy7tcenmpD1ypASozpmT/E0iPtmFIB46ZmdtAc9eNBvH0H/ZpiBw==" crossorigin="anonymous" referrerpolicy="no-referrer" />
   <style>
     :root {
       --primary:   #6366f1;