docs: Change code font to Adobe Source Code Pro

Author: DenverCoder1

docs/source/_static/css/custom.css

@@ -32,5 +32,5 @@ a.icon.icon-home:visited {
 .rst-content .linenodiv pre,
 .rst-content div[class^="highlight"] pre,
 .rst-content pre.literal-block {
-    font-family: Fira Mono, SFMono-Regular, Menlo, Monaco, Consolas, Liberation Mono, Courier New, Courier, monospace;
+    font-family: Source Code Pro, SFMono-Regular, Menlo, Monaco, Consolas, Liberation Mono, Courier New, Courier, monospace;
 }

docs/source/_templates/layout.html

@@ -40,9 +40,7 @@
   <link rel="stylesheet" href="{{ pathto('_static/css/theme.css', 1)|e }}" type="text/css" />
   <link rel="stylesheet" href="{{ pathto('_static/css/custom.css', 1)|e }}" type="text/css" />
 
-  <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=Fira+Mono&display=swap" rel="stylesheet">
+  <link href="https://adobe-fonts.github.io/source-code-pro/source-code-pro.css" rel="stylesheet">
 
   {%- for cssfile in extra_css_files %}
   <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />