message: changed colour scheme for safari 15
  changed colour scheme to match users experience better
diff: <link rel="icon" type="image/png" sizes="16x16" href="/assets/favicon-16x16.png">
  <link rel="mask-icon" href="/assets/mask-icon.svg" color="#57277c">
  <link rel="manifest" href="/assets/manifest.webmanifest">
  - <meta name="theme-color" content="#140a33">
  + <meta name="theme-color" content="#140a33" media="(prefers-color-scheme: light)">
  + <meta name="theme-color" content="#0f0f0f" media="(prefers-color-scheme: dark)">
  </head>
  