Update to match latest bearblog CSS (#113)

Updates the CSS to match the latest bearblog CSS ~~as of
4bbfe356d4/templates/styles/blog/default.css~~
currently on the production site (which don't actually match what's in
the repo)

layouts/partials/style.html

@@ -1,6 +1,6 @@
 <style>
   :root {
-      --width: 800px;
+      --width: 720px;
       --font-main: Verdana, sans-serif;
       --font-secondary: Verdana, sans-serif;
       --font-scale: 1em;
@@ -16,12 +16,12 @@
 
   @media (prefers-color-scheme: dark) {
       :root {
-          --background-color: #333;
+          --background-color: #01242e;
           --heading-color: #eee;
           --text-color: #ddd;
           --link-color: #8cc2dd;
           --visited-color:  #8b6fcb;
-          --code-background-color: #777;
+          --code-background-color: #000;
           --code-color: #ddd;
           --blockquote-color: #ccc;
       }
@@ -53,7 +53,7 @@
   }
 
   a:hover {
-      text-decoration: underline; 
+      text-decoration: underline;
   }
 
   nav a {
@@ -69,6 +69,12 @@
       cursor: pointer;
   }
 
+  time {
+   	font-family: monospace;
+    	font-style: normal;
+    	font-size: 15px;
+  }
+
   main {
       line-height: 1.6;
   }