feat(docs): Change lightmode to simple dark

docs/index.html

@@ -6,7 +6,7 @@
   <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
   <meta name="description" content="Documentation for T-Notify, a FiveM notification resource.">
   <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
-  <link rel="stylesheet" href="https://unpkg.com/docsify-themeable/dist/css/theme-simple.css">
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/docsify-themeable@0/dist/css/theme-simple-dark.css">
   <link rel="apple-touch-icon" sizes="180x180" href="favicons/apple-touch-icon.png">
   <link rel="icon" type="image/png" sizes="32x32" href="./favicons/favicon-32x32.png">
   <link rel="icon" type="image/png" sizes="16x16" href="./favicons/favicon-16x16.png">