Copy font-awesome and nightowl into css/ and js/

Author: joshka

_layouts/default.html

@@ -14,9 +14,9 @@
   <link rel="stylesheet" href="{{ "/css/asciidoctor.css" | prepend: site.baseurl }}">
   <link rel="stylesheet" href="{{ "/css/rouge-github.css" | prepend: site.baseurl }}">
   <link rel="stylesheet" href="{{ "/css/main.css" | prepend: site.baseurl }}">
-  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.4.0/css/font-awesome.min.css">
+  <link rel="stylesheet" href="{{ "/css/font-awesome.min.css" | prepend: site.baseurl }}">
   <!-- dark mode -->
-  <script type="module" src="https://cdn.jsdelivr.net/npm/@bufferhead/nightowl@0.0.14/dist/nightowl.js"></script>
+  <script type="module" src="{{ "/js/nightowl.js" | prepend: site.baseurl }}"></script>
 
   <link rel="canonical" href="{{ page.url | replace:'index.html','' | prepend: site.baseurl | prepend: site.url }}">
   <link rel="alternate" type="application/rss+xml" title="{{ site.title }}"